CVE-2021-26475 json
EPrints 3.4.2 exposes a reflected XSS opportunity in the via a cgi/cal URI.
published 2021-03-01 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13280
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 7.3%
- EPSS 7.3% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
EPrints 3.4.2 exposes a reflected XSS opportunity in the via a cgi/cal URI.
Patch / fix
Exploit prediction
7.33% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template EPrints 3.4.2 - Cross-Site Scripting nuclei detection template
- github.com https://github.com/grymer/CVE/blob/master/eprints_security_review.pdf 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 |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
files.eprints.org
/2548/
patch, vendor-advisory
-
github.com
/grymer/CVE/blob/master/eprints_security_review.pdf
exploit, patch, third-party-advisory
Sources
- CVE List CVE-2021-26475
- NVD CVE-2021-26475
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