An issue in Koha ILS 23.05 and before allows a remote attacker to execute arbitrary code via a crafted script to the format parameter.

published 2024-08-06 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-25828

cvss: 9.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 18.9%; EPSS 18.9% chance of exploitation in 30 days, percentile 97%
public exploits: 0; none known

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-08-06)

Exploit prediction

18.92% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

febin0x4e4a.wordpress.com https://febin0x4e4a.wordpress.com/2024/03/07/xss-to-one-click-rce-in-koha-ils/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA	3.1	9.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

koha koha

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-77 Improper Neutralization of Special Elements used in a Command

References

febin0x4e4a.wordpress.com /2024/03/07/xss-to-one-click-rce-in-koha-ils/
exploit, third-party-advisory

Sources

CVE List CVE-2024-28739
NVD CVE-2024-28739

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.

Summary