CVE-2021-25121 json
Rating by BestWebSoft < 1.6 - Rating Denial of Service
published 4y ago modified 4mo ago also EUVD-2021-12033
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 69%
- public exploits
- 0
- none known
Summary
The Rating by BestWebSoft WordPress plugin before 1.6 does not validate the submitted rating, allowing submission of long integer, causing a Denial of Service on the post/page when a user submit such rating
Patch / fix
- bestwebsoft rating 1.6
Is CVE-2021-25121 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
1.24% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/efb1ddef-2123-416c-a932-856d41ed836d referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
Affected products
- Unknown Rating by BestWebSoft
Classification
- Weakness
-
- CWE-191 Integer Underflow (Wrap or Wraparound)
- Technology feeds
References
-
wpscan.com
/vulnerability/efb1ddef-2123-416c-a932-856d41ed836d
exploit, third-party-advisory
Sources
- CVE List CVE-2021-25121
- NVD CVE-2021-25121
Fencer Intel 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.