Photo Gallery by Supsystic <= 1.15.5 - Cross-Site Request Forgery to Plugin Settings Change
Strategic Overview
- Status
- Patched in 1.15.6
- Affected Plugin
- Photo Gallery – Responsive Image Galleries by Supsystic
- Affected Version
<= 1.15.5- CVSS
- 5.4Medium
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2021-36891
At a glance
CVE-2021-36891 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Photo Gallery WordPress plugin, affecting versions <= 1.15.5. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.15.6; sites on affected versions should update now. Disclosed June 2022.
Vulnerability Overview
Cross-Site Request Forgery (CSRF) vulnerability in Photo Gallery by Supsystic plugin <= 1.15.5 at WordPress allows changing the plugin settings.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.
CWE-352: Cross-Site Request Forgery (CSRF)
Reaching this weakness in Photo Gallery <= 1.15.5 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Photo Gallery the fix is 1.15.6: builds <= 1.15.5 are affected, anything from 1.15.6 onward is not.
Remediation
Update to version 1.15.6, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Photo Gallery: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Photo Gallery 1.15.6 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Photo Gallery – Responsive Image Galleries by Supsystic
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