CVE-2023-0873 json
Kanban Boards for WordPress < 2.5.21 - Admin+ Stored XSS
published 2023-06-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12864
- cvss
- 4.8
- 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 46%
- public exploits
- 0
- none known
Summary
The Kanban Boards for WordPress plugin before 2.5.21 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
Patch / fix
- Unknown Kanban Boards for WordPress 2.5.21
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/8816d4c1-9e8e-4b6f-a36a-10a98a7ccfcd referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 4.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N |
Affected products
- Unknown Kanban Boards for WordPress
Classification
- Technology feeds
References
-
wpscan.com
/vulnerability/8816d4c1-9e8e-4b6f-a36a-10a98a7ccfcd
exploit, vdb-entry, technical-description, third-party-advisory
Sources
- CVE List CVE-2023-0873
- NVD CVE-2023-0873
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.