WPScan
How it worksPricing
Vulnerabilities
WordPressPluginsThemesStatsSubmit vulnerabilities
For developers
StatusAPI detailsCLI scanner
Contact
WPScan
How it worksPricing
Vulnerabilities
WordPressPluginsThemesStatsSubmit vulnerabilities
For developers
StatusAPI detailsCLI scanner
Contact

WordPress Plugin Vulnerabilities

Modern Events Calendar Lite < 5.16.5 - Authenticated Stored Cross-Site Scripting (XSS)

Description

The plugin did not sanitise the mic_comment field (Notes on time) when adding/editing an event, allowing users with privilege as low as author to add events with a Cross-Site Scripting payload in them, which will be triggered in the frontend when viewing the event.

Edit (WPScanTeam)
January 22nd, 2021 - Vendor Contacted via their ticket support (https://support.webnus.net/)
January 23rd, 2021 - Vendor stated It's not a security issue and a role manager plugin should be installed, escalated to WordPress Plugins Team.
January 27th, 2021 - v5.16.5 released, fixing the issue

Proof of Concept

https://drive.google.com/file/d/1Cyy1Th5g1t9yXfvYGDrAFMgDP4USfv5c/view?usp=sharing 

Affects Plugins

modern-events-calendar-lite
Fixed in version 5.16.5

References

CVE
CVE-2021-24147

Classification

Type

XSS

OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79

Miscellaneous

Original Researcher

Nguyen Van Khanh - SunCSR (Sun* Cyber Security Research)

Submitter

khanh

Submitter website
http://research.sun-asterisk.com/
Verified

Yes

WPVDB ID
0f9ba284-5d7e-4092-8344-c68316b0146f

Timeline

Publicly Published

2021-01-29 (about 2 years ago)

Added

2021-01-29 (about 2 years ago)

Last Updated

2021-01-31 (about 2 years ago)

Our Other Services

WPScan WordPress Security Plugin
WPScan

Vulnerabilities

WordPressPluginsThemesOur StatsSubmit vulnerabilities

About

How it worksPricingWordPress pluginNewsContact

For Developers

StatusAPI detailsCLI scanner

Other

PrivacyTerms of serviceSubmission termsDisclosure policyPrivacy Notice for California Users
jetpackIn partnership with Jetpack
githubtwitterfacebook
Angithubendeavor
Work With Us