Vulnerability · Published Feb 19, 2026 · Assigned by Wordfence

CVE-2025-13617Apollo13 Framework Extension <= 1.9.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via `a13_alt_link` Parameter

Medium 6.4

In plain English

A medium-severity cross-site scripting in Apollo13 Framework Extensions from apollo13themes. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 3.1)6.4Medium
Exploit odds (30 days)0.3%top 71.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

The Apollo13 Framework Extensions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘a13_alt_link’ parameter in all versions up to, and including, 1.9.8 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products (as reported)

VendorProductVersions
apollo13themes Apollo13 Framework Extensions 0 – through 1.9.8

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

References