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Description

The TR Timthumb plugin for WordPress is vulnerable to Stored Cross-Site Scripting via shortcode attributes in all versions up to, and including, 1.0.4 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.

PUBLISHED Reserved 2025-12-02 | Published 2025-12-06 | Updated 2025-12-06 | Assigner Wordfence




MEDIUM: 6.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Problem types

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
unaffected

* (semver)
affected

Timeline

2025-12-05:Disclosed

Credits

Peter Thaleikis finder

References

www.wordfence.com/...-eb8b-4c72-9852-b3a2b37b9a04?source=cve

plugins.trac.wordpress.org/...r-timthumb/trunk/inc/front.php

plugins.trac.wordpress.org/...thumb/tags/1.0.4/inc/front.php

cve.org (CVE-2025-13899)

nvd.nist.gov (CVE-2025-13899)