Vulnerability · Published Jul 1, 2024 · Assigned by GitHub_M

CVE-2024-39310WordPress Basil Theme Authenticated (Contributor+) Persistent Cross-Site Scripting Vulnerability

Medium 5.4

In plain English

A medium-severity cross-site scripting in Basil from XjSv. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 77.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

The Basil recipe theme for WordPress is vulnerable to Persistent Cross-Site Scripting (XSS) via the `post_title` parameter in versions up to, and including, 2.0.4 due to insufficient input sanitization and output escaping. This vulnerability allows authenticated attackers with contributor-level access and above to inject arbitrary web scripts in pages that will execute whenever a user accesses a compromised page. Because the of the default WordPress validation, it is not possible to insert the payload directly but if the Cooked plugin is installed, it is possible to create a recipe post type (cp_recipe) and inject the payload in the title field. Version 2.0.5 contains a patch for the issue.

Affected products (as reported)

Vendor	Product	Versions
XjSv	Basil	< 2.0.5

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://github.com/XjSv/Basil/security/advisories/GHSA-cr7v-8v2h-49vx x_refsource_CONFIRM
https://github.com/XjSv/Basil/commit/e2b1dbf1637d1ec2663f9aa1a563b02dc76a8146 x_refsource_MISC