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CVE-2024-28740VulnerabilityPublished Updated

CVE-2024-28740: n/a

Source CVE Database V5

0

Not known to be exploited · CVSS 6.1 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 53% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

AI-suggested

Organizations using Koha ILS 23.05 or earlier should immediately review and apply any available patches or updates from the Koha development community once released. In the absence of official patches, administrators should implement input validation and output encoding on the additonal-contents.pl component to sanitize user-supplied data and prevent script injection. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers accessing the Koha interface. Educate users about the risks of interacting with suspicious links or content within the library system to reduce the likelihood of successful exploitation requiring user interaction. Regularly audit and monitor web application logs for unusual activity indicative of attempted XSS attacks. Consider isolating the Koha web interface behind web application firewalls (WAFs) that can detect and block XSS payloads. Finally, maintain an incident response plan tailored to web application attacks to quickly address any exploitation attempts.

Description

Cross Site Scripting vulnerability in Koha ILS 23.05 and before allows a remote attacker to execute arbitrary code via the additonal-contents.pl component.

References

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