What is CVE-2025-10138?

CVE-2025-10138 is a medium-severity vulnerability in Andrex84 This-Or-That, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-10-22.

How severe is CVE-2025-10138?

Medium severity. CVSS v3 base score is 6.4 out of 10.

XSS in Andrex84 This-Or-That

CVE-2025-10138

The This-or-That plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'thisorthat' shortcode in all versions up to, and including, 1.0.4 due to insufficient input sanitization and output escaping on user supplied attributes. 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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (12.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N.

Affected products

Andrex84 This-or-that — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2025-10138?: CVE-2025-10138 is a medium-severity vulnerability in Andrex84 This-Or-That, classified under Cross-site Scripting. CVSS score: 6.4/10. Published 2025-10-22.
How severe is CVE-2025-10138?: Medium severity. CVSS v3 base score is 6.4 out of 10.