CVE-2023-4157
Improper Neutralization of Special Elements in Output Used by a Downstream Component in omeka/omeka-s
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Improper Neutralization of Special Elements in Output Used by a Downstream Component in omeka/omeka-s
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.
- Record
CVE-2023-4157- CVSS 3.1
- 5.2 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
EUVDEUVD-2023-2282
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.
- Record
EUVD-2023-2282- CVSS 3.1
- 5.2 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fxc5-pr68-2px3
omeka/omeka-s Improper Input Validation vulnerability
Improper Input Validation in GitHub repository omeka/omeka-s prior to 4.0.3.
- Record
GHSA-fxc5-pr68-2px3- CVSS 3.0
- 5.2 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-20, CWE-74
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2023-4157- CVSS 3.1
- 5.2 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N - CVSS 3.1
- 4.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
OSV
Improper Neutralization of Special Elements in Output Used by a Downstream Component in omeka/omeka-s
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.
- Record
CVE-2023-4157- CVSS 3.1
- 5.2 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
OSVGHSA-fxc5-pr68-2px3
omeka/omeka-s Improper Input Validation vulnerability
Improper Input Validation in GitHub repository omeka/omeka-s prior to 4.0.3.
- Record
GHSA-fxc5-pr68-2px3- CVSS 3.0
- 5.2 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N - Weakness
- CWE-20, CWE-74
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
omeka/omeka-sPackagist |
before 4.0.3 | 4.0.3 |
omeka/omeka-sPackagist |
before 4.0.3, plus listed versions v0.2.0-alphav0.3.0-alphav0.4.0-alphav0.5.0-alphav0.6.0-alpha Show 35 moreShow lessv0.7.0-alphav0.8.0-alphav1.0.0v1.0.0-betav1.0.0-beta2v1.0.0-beta3v1.0.0-beta4v1.0.0-rc.1v1.0.1v1.1.0v1.1.1v1.2.0v1.3.0v1.4.0v2.0.0v2.0.1v2.0.2v2.1.0v2.1.1v2.1.2v3.0.0v3.0.0-alphav3.0.1v3.0.2v3.1.0v3.1.1v3.1.2v3.2.0v3.2.1v3.2.2v3.2.3v4.0.0v4.0.0-rcv4.0.1v4.0.2 |
4.0.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-4157 is a medium vulnerability (CVSS 5.2) in Omeka, published August 4, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.51%, the 44th percentile. Fixed in omeka/omeka-s 4.0.3.
References
huntr.dev/bounties/abc3521b-1238-4c4e-97f1-2957db670014
github.com/omeka/omeka-s/commit/8b72619d9731b32dd21ab6dcaa01ccc3bbf0db63
nvd.nist.gov/vuln/detail/CVE-2023-4157