RCE in Eprints

CVE-2021-26476

EPrints 3.4.2 allows remote attackers to execute OS commands via crafted LaTeX input to a cgi/cal?year= URI.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.031 (86.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Eprints — versions 3.4.2
N/a — versions n/a

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
cve@mitre.org (Exploit, Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-26476?: CVE-2021-26476 is a critical-severity vulnerability in Eprints, classified under OS Command Injection. CVSS score: 9.8/10. Published 2021-03-01.
How severe is CVE-2021-26476?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-26476 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.