Vulnerability · Published Aug 16, 2021 · Assigned by WPScan

CVE-2021-24535Light Messages <= 1.0 - CSRF to Stored XSS

Medium 6.1

In plain English

A medium-severity cross-site scripting in Light Messages from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS NVD)6.1Medium

Exploit odds (30 days)0.4%top 64.3% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Light Messages	1.0 – through 1.0

Weakness: CWE-79, CWE-352

References

https://wpscan.com/vulnerability/351de889-9c0a-4637-bd06-0e1fe1d7e89f x_refsource_MISC