CVE-2021-24888 json
ImageBoss < 3.0.6 - Admin+ Stored Cross-Site Scripting
published 4y ago modified 4mo ago also EUVD-2021-11800
- cvss
- 4.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
The ImageBoss WordPress plugin before 3.0.6 does not sanitise and escape its Source Name setting, which could allow high privilege users to perform Cross-Site Scripting attacks
Patch / fix
- imageboss imageboss 3.0.6
Is CVE-2021-24888 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
0.70% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/19bffa71-705c-42fc-b2ca-bf62fabb70a0 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 |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Affected products
- Unknown ImageBoss – Images Up To 60% Smaller & CDN
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
- Technology feeds
References
-
wpscan.com
/vulnerability/19bffa71-705c-42fc-b2ca-bf62fabb70a0
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24888
- NVD CVE-2021-24888
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.