CVE-2025-13739 json
CryptX <= 4.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
published 2025-12-05 11 mo ago modified 2026-09-25 44 d ago also EUVD-2025-201401
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 25%
- public exploits
- 0
- none known
Summary
The CryptX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `cryptx` shortcode in all versions up to, and including, 4.0.5 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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 11 mo ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Affected products
- d3395 CryptX
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/2f8cb7d7-eb40-403e-85de-c16200ee424d?source=cve
- plugins.trac.wordpress.org /browser/cryptx/tags/4.0.4/classes/CryptX.php#L149
- plugins.trac.wordpress.org /browser/cryptx/tags/4.0.4/classes/CryptX.php#L237
- plugins.trac.wordpress.org /browser/cryptx/tags/4.0.4/classes/CryptX.php#L604
- plugins.trac.wordpress.org /browser/cryptx/tags/4.0.4/classes/CryptX.php#L1295
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3416363%40cryptx&new=3416363%40cryptx&sfp_email=&sfph_mail=
Sources
- CVE List CVE-2025-13739
- NVD CVE-2025-13739
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.