CVE-2024-9204 json
Smart Custom 404 Error Page <= 11.4.7 - Reflected Cross-Site Scripting
published 2024-10-04 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-49788
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 40%
- public exploits
- 0
- none known
Summary
The Smart Custom 404 Error Page plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via $_SERVER['REQUEST_URI'] in all versions up to, and including, 11.4.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
Patch / fix
- nerdpress smart_custom_404_error_page 11.4.8
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected products
- nerdpressteam Smart Custom 404 Error Page
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset/3161639/#file2
patch
-
wordfence.com
/threat-intel/vulnerabilities/id/93928123-c90d-4bbb-b51d-33e809867b79?source=cve
third-party-advisory
-
plugins.trac.wordpress.org
/browser/404page/tags/11.4.7/inc/class-404page.php#L1227
product
-
plugins.trac.wordpress.org
/browser/404page/tags/11.4.7/functions.php#L112
product
Sources
- CVE List CVE-2024-9204
- NVD CVE-2024-9204
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.