CVE-2021-24808 json
BP Better Messages < 1.9.9.41 - Reflected Cross-Site Scripting
published 2021-11-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11720
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 61%
- public exploits
- 0
- none known
Summary
The BP Better Messages WordPress plugin before 1.9.9.41 sanitise (with sanitize_text_field) but does not escape the 'subject' parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue
Patch / fix
- wordplus better_messages 1.9.9.41
Exploit prediction
0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/53ff82ec-00ec-4b20-8f60-db9db8c025b4 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 |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Unknown BP Better Messages
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset/2605772/bp-better-messages/trunk/views/layout-new.php
patch, third-party-advisory
-
wpscan.com
/vulnerability/53ff82ec-00ec-4b20-8f60-db9db8c025b4
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24808
- NVD CVE-2021-24808
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