CVE-2021-24535
Last modified
CVE-2021-24535 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. The Light Messages WordPress plugin through 1.0 is lacking CSRF check when updating it's settings, and is not sanitising its Message Content in them (even with the unfiltered_html disallowed). As a result, an attacker could make a logged in admin update the settings to arbitrary values, and set a Cross-Site Scripting payload in the Message Content. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
The Light Messages WordPress plugin through 1.0 is lacking CSRF check when updating it's settings, and is not sanitising its Message Content in them (even with the unfiltered_html disallowed). As a result, an attacker could make a logged in admin update the settings to arbitrary values, and set a Cross-Site Scripting payload in the Message Content. Depending on the options set, the XSS payload can be triggered either in the backend only (in the plugin's settings), or both frontend and backend.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Light Messages Project | Light Messages | <= 1.0 |
References
- https://wpscan.com/vulnerability/351de889-9c0a-4637-bd06-0e1fe1d7e89fExploit, Third Party Advisory
- https://wpscan.com/vulnerability/351de889-9c0a-4637-bd06-0e1fe1d7e89fExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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