What’s Vulnerable › Vulnerabilities

CVE-2021-21434: XSS in Survey Module

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-08 · updated 2026-06-17
• Weakness: CWE-79

Description

Survey administrator can craft a survey in such way that malicious code can be executed in the agent interface (i.e. another agent who wants to make changes in the survey). This issue affects: OTRS AG Survey 6.0.x version 6.0.20 and prior versions; 7.0.x version 7.0.19 and prior versions.

Affected products

• OTRS AG Survey: from 6.0.0 through 6.0.20; from 7.0.0 through 7.0.19

References

• https://otrs.com/release-notes/otrs-security-advisory-2021-01/
• https://otrs.com/release-notes/otrs-security-advisory-2021-01/

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