What’s Vulnerable › Vulnerabilities

CVE-2021-26799

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-07-23 · updated 2026-06-17
• Weakness: CWE-79

Description

Cross Site Scripting (XSS) vulnerability in admin/files/edit in Omeka Classic <=2.7 allows remote attackers to inject arbitrary web script or HTML.

Affected products

• Omeka: through 2.7

References

• https://github.com/omeka/Omeka/commit/08bfdf470e234edb68e5307a2fef8c899d89256c
• https://github.com/omeka/Omeka/issues/935
• https://github.com/omeka/Omeka/commit/08bfdf470e234edb68e5307a2fef8c899d89256c
• https://github.com/omeka/Omeka/issues/935

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