Vulnerability · Published Mar 11, 2024 · Assigned by WPScan

CVE-2024-0561Ultimate Posts Widget < 2.3.1 - Admin+ Stored XSS

Medium 5.4

In plain English

A medium-severity cross-site scripting in Ultimate Posts Widget from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.4%top 61.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

The Ultimate Posts Widget WordPress plugin before 2.3.1 does not validate and escape some of its Widget options before outputting them back in attributes, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Affected products (as reported)

Vendor	Product	Versions
Unknown	Ultimate Posts Widget	0 – before 2.3.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

https://wpscan.com/vulnerability/99b6aa8b-deb9-48f8-8896-f3c8118a4f70/ exploit, vdb-entry, technical-description