CVE-2023-2803 json
Ultimate Addons for Contact Form 7 < 3.1.29 - Reflected XSS
published 2023-08-14 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-34256
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
The Ultimate Addons for Contact Form 7 WordPress plugin before 3.1.29 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
Patch / fix
- Unknown Ultimate Addons for Contact Form 7 3.1.29
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/ec640d47-bb22-478d-9668-1dab72f12f8d referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 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
- Unknown Ultimate Addons for Contact Form 7
Classification
- Technology feeds
References
-
wpscan.com
/vulnerability/ec640d47-bb22-478d-9668-1dab72f12f8d
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2023-2803
- NVD CVE-2023-2803
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.