CVE-2026-16942 json
WP Custom HTML Pages <= 0.6.2 - Author+ Stored XSS
published 2026-08-05 3 mo ago modified 2026-08-26 2 mo ago also EUVD-2026-53111
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 13%
- public exploits
- 0
- none known
Summary
The WP Custom HTML Page WordPress plugin through 0.6.2 does not sanitise HTML stored through one of its custom page handlers, nor restrict it to users allowed to post unfiltered HTML, allowing users with the Author role to store JavaScript that is served unescaped at a public URL and executes for any visitor, including administrators.
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 13% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/cda6b957-2013-4707-a5b5-5ddc04be2f6a/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected products
- Unknown WP Custom HTML Page
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/cda6b957-2013-4707-a5b5-5ddc04be2f6a/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-16942
- NVD CVE-2026-16942
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.