CVE-2021-24409 json
Prismatic < 2.8 - Reflected Cross-Site Scripting (XSS)
published 2021-07-12 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11321
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.7%
- EPSS 1.7% chance of exploitation in 30 days, percentile 77%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
The Prismatic WordPress plugin before 2.8 does not escape the 'tab' GET parameter before outputting it back in an attribute, leading to a reflected Cross-Site Scripting issue which will be executed in the context of a logged in administrator
Patch / fix
- plugin-planet prismatic 2.8
Exploit prediction
1.72% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template Prismatic < 2.8 - Cross-Site Scripting nuclei detection template
- wpscan.com https://wpscan.com/vulnerability/ae3cd3ed-aecd-4d8c-8a2b-2936aaaef0cf 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
- Jeff Starr Prismatic
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/ae3cd3ed-aecd-4d8c-8a2b-2936aaaef0cf
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24409
- NVD CVE-2021-24409
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.