WordPress Vulnerabilities

WordPress <= 5.3 - Authenticated Stored XSS via Block Editor Content

Description

WordPress users with lower privileges (like contributors) can inject JavaScript code in the block editor using a specific payload, which is executed within the dashboard. This can lead to XSS if an admin opens the post in the editor. Execution of this attack does require an authenticated user.

Affects WordPress

3.8.1
Fixed in WordPress 3.8.32
3.8
Fixed in WordPress 3.8.32
3.7.1
Fixed in WordPress 3.7.32
3.9
Fixed in WordPress 3.9.30
3.9.1
Fixed in WordPress 3.9.30
3.7
Fixed in WordPress 3.7.32
3.8.2
Fixed in WordPress 3.8.32
3.8.3
Fixed in WordPress 3.8.32
3.9.2
Fixed in WordPress 3.9.30
4.0
Fixed in WordPress 4.0.29
4.1
Fixed in WordPress 4.1.29
4.1.1
Fixed in WordPress 4.1.29
4.2
Fixed in WordPress 4.2.26
3.9.3
Fixed in WordPress 3.9.30
4.1.2
Fixed in WordPress 4.1.29
4.2.1
Fixed in WordPress 4.2.26
4.0.1
Fixed in WordPress 4.0.29
4.1.5
Fixed in WordPress 4.1.29
4.1.4
Fixed in WordPress 4.1.29
4.1.3
Fixed in WordPress 4.1.29
3.8.4
Fixed in WordPress 3.8.32
3.7.4
Fixed in WordPress 3.7.32
4.2.3
Fixed in WordPress 4.2.26
3.8.8
Fixed in WordPress 3.8.32
3.8.5
Fixed in WordPress 3.8.32
3.8.6
Fixed in WordPress 3.8.32
3.8.7
Fixed in WordPress 3.8.32
3.7.2
Fixed in WordPress 3.7.32
3.7.3
Fixed in WordPress 3.7.32
3.7.5
Fixed in WordPress 3.7.32
3.7.6
Fixed in WordPress 3.7.32
3.7.7
Fixed in WordPress 3.7.32
3.7.8
Fixed in WordPress 3.7.32
3.7.9
Fixed in WordPress 3.7.32
3.8.9
Fixed in WordPress 3.8.32
3.9.4
Fixed in WordPress 3.9.30
3.9.5
Fixed in WordPress 3.9.30
3.9.6
Fixed in WordPress 3.9.30
3.9.7
Fixed in WordPress 3.9.30
4.0.2
Fixed in WordPress 4.0.29
4.0.3
Fixed in WordPress 4.0.29
4.0.4
Fixed in WordPress 4.0.29
4.0.5
Fixed in WordPress 4.0.29
4.0.6
Fixed in WordPress 4.0.29
4.1.6
Fixed in WordPress 4.1.29
4.2.2
Fixed in WordPress 4.2.26
4.2.4
Fixed in WordPress 4.2.26
4.1.7
Fixed in WordPress 4.1.29
4.0.7
Fixed in WordPress 4.0.29
3.9.8
Fixed in WordPress 3.9.30
3.8.10
Fixed in WordPress 3.8.32
3.7.10
Fixed in WordPress 3.7.32
4.3
Fixed in WordPress 4.3.22
4.3.1
Fixed in WordPress 4.3.22
4.2.5
Fixed in WordPress 4.2.26
4.1.8
Fixed in WordPress 4.1.29
4.0.8
Fixed in WordPress 4.0.29
3.9.9
Fixed in WordPress 3.9.30
3.8.11
Fixed in WordPress 3.8.32
3.7.11
Fixed in WordPress 3.7.32
4.4
Fixed in WordPress 4.4.21
3.7.12
Fixed in WordPress 3.7.32
3.8.12
Fixed in WordPress 3.8.32
3.9.10
Fixed in WordPress 3.9.30
4.0.9
Fixed in WordPress 4.0.29
4.1.9
Fixed in WordPress 4.1.29
4.2.6
Fixed in WordPress 4.2.26
4.3.2
Fixed in WordPress 4.3.22
4.4.1
Fixed in WordPress 4.4.21
4.4.2
Fixed in WordPress 4.4.21
4.3.3
Fixed in WordPress 4.3.22
4.2.7
Fixed in WordPress 4.2.26
4.1.10
Fixed in WordPress 4.1.29
4.0.10
Fixed in WordPress 4.0.29
3.9.11
Fixed in WordPress 3.9.30
3.8.13
Fixed in WordPress 3.8.32
3.7.13
Fixed in WordPress 3.7.32
4.5
Fixed in WordPress 4.5.20
4.5.1
Fixed in WordPress 4.5.20
3.7.14
Fixed in WordPress 3.7.32
3.8.14
Fixed in WordPress 3.8.32
3.9.12
Fixed in WordPress 3.9.30
4.0.11
Fixed in WordPress 4.0.29
4.1.11
Fixed in WordPress 4.1.29
4.2.8
Fixed in WordPress 4.2.26
4.3.4
Fixed in WordPress 4.3.22
4.4.3
Fixed in WordPress 4.4.21
4.5.2
Fixed in WordPress 4.5.20
4.5.3
Fixed in WordPress 4.5.20
3.7.15
Fixed in WordPress 3.7.32
3.8.15
Fixed in WordPress 3.8.32
3.9.13
Fixed in WordPress 3.9.30
4.0.12
Fixed in WordPress 4.0.29
4.1.12
Fixed in WordPress 4.1.29
4.2.9
Fixed in WordPress 4.2.26
4.3.5
Fixed in WordPress 4.3.22
4.4.4
Fixed in WordPress 4.4.21
4.6
Fixed in WordPress 4.6.17
3.7.16
Fixed in WordPress 3.7.32
3.8.16
Fixed in WordPress 3.8.32
3.9.14
Fixed in WordPress 3.9.30
4.0.13
Fixed in WordPress 4.0.29
4.1.13
Fixed in WordPress 4.1.29
4.2.10
Fixed in WordPress 4.2.26
4.3.6
Fixed in WordPress 4.3.22
4.4.5
Fixed in WordPress 4.4.21
4.5.4
Fixed in WordPress 4.5.20
4.6.1
Fixed in WordPress 4.6.17
4.7
Fixed in WordPress 4.7.16
3.7.17
Fixed in WordPress 3.7.32
3.8.17
Fixed in WordPress 3.8.32
3.9.15
Fixed in WordPress 3.9.30
4.0.14
Fixed in WordPress 4.0.29
4.1.14
Fixed in WordPress 4.1.29
4.2.11
Fixed in WordPress 4.2.26
4.3.7
Fixed in WordPress 4.3.22
4.4.6
Fixed in WordPress 4.4.21
4.5.5
Fixed in WordPress 4.5.20
4.7.1
Fixed in WordPress 4.7.16
4.6.2
Fixed in WordPress 4.6.17
3.7.18
Fixed in WordPress 3.7.32
3.8.18
Fixed in WordPress 3.8.32
3.9.16
Fixed in WordPress 3.9.30
4.0.15
Fixed in WordPress 4.0.29
4.1.15
Fixed in WordPress 4.1.29
4.2.12
Fixed in WordPress 4.2.26
4.3.8
Fixed in WordPress 4.3.22
4.4.7
Fixed in WordPress 4.4.21
4.5.6
Fixed in WordPress 4.5.20
4.6.3
Fixed in WordPress 4.6.17
4.7.2
Fixed in WordPress 4.7.16
3.7.19
Fixed in WordPress 3.7.32
3.8.19
Fixed in WordPress 3.8.32
3.9.17
Fixed in WordPress 3.9.30
4.0.16
Fixed in WordPress 4.0.29
4.1.16
Fixed in WordPress 4.1.29
4.2.13
Fixed in WordPress 4.2.26
4.3.9
Fixed in WordPress 4.3.22
4.4.8
Fixed in WordPress 4.4.21
4.5.7
Fixed in WordPress 4.5.20
4.6.4
Fixed in WordPress 4.6.17
4.7.3
Fixed in WordPress 4.7.16
3.7.20
Fixed in WordPress 3.7.32
3.8.20
Fixed in WordPress 3.8.32
3.9.18
Fixed in WordPress 3.9.30
4.0.17
Fixed in WordPress 4.0.29
4.1.17
Fixed in WordPress 4.1.29
4.2.14
Fixed in WordPress 4.2.26
4.3.10
Fixed in WordPress 4.3.22
4.4.9
Fixed in WordPress 4.4.21
4.5.8
Fixed in WordPress 4.5.20
4.6.5
Fixed in WordPress 4.6.17
4.7.4
Fixed in WordPress 4.7.16
4.7.5
Fixed in WordPress 4.7.16
3.7.21
Fixed in WordPress 3.7.32
3.8.21
Fixed in WordPress 3.8.32
3.9.19
Fixed in WordPress 3.9.30
4.0.18
Fixed in WordPress 4.0.29
4.1.18
Fixed in WordPress 4.1.29
4.2.15
Fixed in WordPress 4.2.26
4.3.11
Fixed in WordPress 4.3.22
4.4.10
Fixed in WordPress 4.4.21
4.5.9
Fixed in WordPress 4.5.20
4.6.6
Fixed in WordPress 4.6.17
4.8
Fixed in WordPress 4.8.12
4.8.1
Fixed in WordPress 4.8.12
3.7.22
Fixed in WordPress 3.7.32
3.8.22
Fixed in WordPress 3.8.32
3.9.20
Fixed in WordPress 3.9.30
4.0.19
Fixed in WordPress 4.0.29
4.1.19
Fixed in WordPress 4.1.29
4.2.16
Fixed in WordPress 4.2.26
4.3.12
Fixed in WordPress 4.3.22
4.4.11
Fixed in WordPress 4.4.21
4.5.10
Fixed in WordPress 4.5.20
4.6.7
Fixed in WordPress 4.6.17
4.7.6
Fixed in WordPress 4.7.16
4.8.2
Fixed in WordPress 4.8.12
4.8.3
Fixed in WordPress 4.8.12
3.7.23
Fixed in WordPress 3.7.32
3.8.23
Fixed in WordPress 3.8.32
3.9.21
Fixed in WordPress 3.9.30
4.0.20
Fixed in WordPress 4.0.29
4.1.20
Fixed in WordPress 4.1.29
4.2.17
Fixed in WordPress 4.2.26
4.3.13
Fixed in WordPress 4.3.22
4.4.12
Fixed in WordPress 4.4.21
4.5.11
Fixed in WordPress 4.5.20
4.6.8
Fixed in WordPress 4.6.17
4.7.7
Fixed in WordPress 4.7.16
4.9
Fixed in WordPress 4.9.13
4.9.1
Fixed in WordPress 4.9.13
4.8.4
Fixed in WordPress 4.8.12
4.7.8
Fixed in WordPress 4.7.16
4.6.9
Fixed in WordPress 4.6.17
4.5.12
Fixed in WordPress 4.5.20
4.4.13
Fixed in WordPress 4.4.21
4.3.14
Fixed in WordPress 4.3.22
4.2.18
Fixed in WordPress 4.2.26
4.1.21
Fixed in WordPress 4.1.29
4.0.21
Fixed in WordPress 4.0.29
3.9.22
Fixed in WordPress 3.9.30
3.8.24
Fixed in WordPress 3.8.32
3.7.24
Fixed in WordPress 3.7.32
4.9.2
Fixed in WordPress 4.9.13
4.8.5
Fixed in WordPress 4.8.12
4.7.9
Fixed in WordPress 4.7.16
4.6.10
Fixed in WordPress 4.6.17
4.5.13
Fixed in WordPress 4.5.20
4.4.14
Fixed in WordPress 4.4.21
4.3.15
Fixed in WordPress 4.3.22
4.2.19
Fixed in WordPress 4.2.26
4.1.22
Fixed in WordPress 4.1.29
4.0.22
Fixed in WordPress 4.0.29
3.9.23
Fixed in WordPress 3.9.30
3.8.25
Fixed in WordPress 3.8.32
3.7.25
Fixed in WordPress 3.7.32
4.9.3
Fixed in WordPress 4.9.13
4.9.4
Fixed in WordPress 4.9.13
3.7.26
Fixed in WordPress 3.7.32
3.8.26
Fixed in WordPress 3.8.32
3.9.24
Fixed in WordPress 3.9.30
4.0.23
Fixed in WordPress 4.0.29
4.1.23
Fixed in WordPress 4.1.29
4.2.20
Fixed in WordPress 4.2.26
4.3.16
Fixed in WordPress 4.3.22
4.4.15
Fixed in WordPress 4.4.21
4.5.14
Fixed in WordPress 4.5.20
4.6.11
Fixed in WordPress 4.6.17
4.7.10
Fixed in WordPress 4.7.16
4.8.6
Fixed in WordPress 4.8.12
4.9.5
Fixed in WordPress 4.9.13
4.9.6
Fixed in WordPress 4.9.13
3.7.27
Fixed in WordPress 3.7.32
3.8.27
Fixed in WordPress 3.8.32
3.9.25
Fixed in WordPress 3.9.30
4.0.24
Fixed in WordPress 4.0.29
4.1.24
Fixed in WordPress 4.1.29
4.2.21
Fixed in WordPress 4.2.26
4.3.17
Fixed in WordPress 4.3.22
4.4.16
Fixed in WordPress 4.4.21
4.5.15
Fixed in WordPress 4.5.20
4.6.12
Fixed in WordPress 4.6.17
4.7.11
Fixed in WordPress 4.7.16
4.8.7
Fixed in WordPress 4.8.12
4.9.7
Fixed in WordPress 4.9.13
4.9.8
Fixed in WordPress 4.9.13
5.0
Fixed in WordPress 5.0.8
5.0.1
Fixed in WordPress 5.0.8
4.9.9
Fixed in WordPress 4.9.13
4.8.8
Fixed in WordPress 4.8.12
4.7.12
Fixed in WordPress 4.7.16
4.6.13
Fixed in WordPress 4.6.17
4.5.16
Fixed in WordPress 4.5.20
4.4.17
Fixed in WordPress 4.4.21
4.3.18
Fixed in WordPress 4.3.22
4.2.22
Fixed in WordPress 4.2.26
4.1.25
Fixed in WordPress 4.1.29
4.0.25
Fixed in WordPress 4.0.29
3.9.26
Fixed in WordPress 3.9.30
3.8.28
Fixed in WordPress 3.8.32
3.7.28
Fixed in WordPress 3.7.32
5.0.2
Fixed in WordPress 5.0.8
5.0.3
Fixed in WordPress 5.0.8
5.1
Fixed in WordPress 5.1.4
5.1.1
Fixed in WordPress 5.1.4
5.0.4
Fixed in WordPress 5.0.8
4.9.10
Fixed in WordPress 4.9.13
4.8.9
Fixed in WordPress 4.8.12
4.7.13
Fixed in WordPress 4.7.16
4.6.14
Fixed in WordPress 4.6.17
4.5.17
Fixed in WordPress 4.5.20
4.4.18
Fixed in WordPress 4.4.21
4.3.19
Fixed in WordPress 4.3.22
4.2.23
Fixed in WordPress 4.2.26
4.1.26
Fixed in WordPress 4.1.29
4.0.26
Fixed in WordPress 4.0.29
3.9.27
Fixed in WordPress 3.9.30
3.8.29
Fixed in WordPress 3.8.32
3.7.29
Fixed in WordPress 3.7.32
5.2
Fixed in WordPress 5.2.5
5.2.1
Fixed in WordPress 5.2.5
5.2.2
Fixed in WordPress 5.2.5
5.2.3
Fixed in WordPress 5.2.5
5.1.2
Fixed in WordPress 5.1.4
5.0.6
Fixed in WordPress 5.0.8
4.9.11
Fixed in WordPress 4.9.13
4.8.10
Fixed in WordPress 4.8.12
4.7.14
Fixed in WordPress 4.7.16
4.6.15
Fixed in WordPress 4.6.17
4.5.18
Fixed in WordPress 4.5.20
4.4.19
Fixed in WordPress 4.4.21
4.3.20
Fixed in WordPress 4.3.22
4.2.24
Fixed in WordPress 4.2.26
4.1.27
Fixed in WordPress 4.1.29
3.9.28
Fixed in WordPress 3.9.30
3.8.30
Fixed in WordPress 3.8.32
3.7.30
Fixed in WordPress 3.7.32
5.2.4
Fixed in WordPress 5.2.5
5.1.3
Fixed in WordPress 5.1.4
5.0.7
Fixed in WordPress 5.0.8
4.9.12
Fixed in WordPress 4.9.13
4.8.11
Fixed in WordPress 4.8.12
4.7.15
Fixed in WordPress 4.7.16
4.6.16
Fixed in WordPress 4.6.17
4.5.19
Fixed in WordPress 4.5.20
4.4.20
Fixed in WordPress 4.4.21
4.3.21
Fixed in WordPress 4.3.22
4.2.25
Fixed in WordPress 4.2.26
4.1.28
Fixed in WordPress 4.1.29
4.0.28
Fixed in WordPress 4.0.29
3.9.29
Fixed in WordPress 3.9.30
3.8.31
Fixed in WordPress 3.8.32
3.7.31
Fixed in WordPress 3.7.32
5.3
Fixed in WordPress 5.3.1

References

CVE
CVE-2019-16781
CVE
CVE-2019-16780
URL
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
URL
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v

Classification

Type
XSS
OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79
CVSS
4.6 (medium)

Miscellaneous

Original Researcher
Nguyen The Duc
Submitter
ducnt
Submitter website
http://www.ducnt.net/
Submitter twitter
https://twitter.com/ducnt_
Verified
No
WPVDB ID
be794159-4486-4ae1-a5cc-5c190e5ddf5f

Timeline

Publicly Published
2019-12-13 (about 6 years ago)
Added
2019-12-13 (about 6 years ago)
Last Updated
2020-05-01 (about 6 years ago)

Other

Published
Title
Published
2024-12-05
Title
Flixita < 1.0.83 - Reflected Cross-Site Scripting via id Parameter
Published
2024-10-14
Title
Disconnected <= 1.3.0 - Reflected Cross-Site Scripting
Published
2023-12-27
Title
My Agile Privacy < 2.1.8 - Authenticated (Contributor+) Stored Cross-Site Scripting vis Shortcode
Published
2023-01-19
Title
GiveWP < 2.24.0 - Contributor+ Stored XSS
Published
2025-01-02
Title
wooexim <= 5.0.0 - CSRF to Reflected XSS