CVE-2023-4284 json
Post Timeline < 2.2.6 - Reflected XSS
published 2023-09-04 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54155
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
The Post Timeline WordPress plugin before 2.2.6 does not sanitise and escape an invalid nonce before outputting it back in an AJAX response, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin
Patch / fix
- Unknown Post Timeline 2.2.6
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 20 mo ago
Exploit prediction
0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template WordPress Post Timeline Plugin < 2.2.6 - Cross-Site Scripting nuclei detection template
- wpscan.com https://wpscan.com/vulnerability/1c126869-0afa-456f-94cc-10334964e5f9 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 Post Timeline
Classification
- Technology feeds
References
-
wpscan.com
/vulnerability/1c126869-0afa-456f-94cc-10334964e5f9
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2023-4284
- NVD CVE-2023-4284
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.