What’s Vulnerable › Vulnerabilities

CVE-2023-4157: Improper Neutralization of Special Elements in Output Used by a Downstream Component in omeka/omeka-s

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-08-04 · updated 2026-06-17
• Weakness: CWE-74

Description

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in GitHub repository omeka/omeka-s prior to version 4.0.3.

Affected products

• omeka/omeka-s: before 4.0.3 — fixed in 4.0.3

How to fix

Upgrade to a fixed version: omeka/omeka-s 4.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/omeka/omeka-s/commit/8b72619d9731b32dd21ab6dcaa01ccc3bbf0db63
• https://huntr.dev/bounties/abc3521b-1238-4c4e-97f1-2957db670014
• https://github.com/omeka/omeka-s/commit/8b72619d9731b32dd21ab6dcaa01ccc3bbf0db63
• https://huntr.dev/bounties/abc3521b-1238-4c4e-97f1-2957db670014

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