CVE-2021-21434

3.5 LOW 0.7% exploit odds Fix listed

What it is

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.

At a glance

Exploitability: Can be exploited over the network with an admin-level account, but needs a user to act. Limited direct impact.
Exploit odds: 0.7% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2021-02-08 11:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 03:35 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.7% in the next 30 days (EPSS).
Severity: 3.5 LOW (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2021-02-08 11:15 UTC
Last modified: 2026-06-17 03:35 UTC
Exploit probability: 0.7% · EPSS, next 30 days
Weakness: CWE-79 · Cross-site scripting
Record status: Modified

Affected

Otrs Survey ≤ 6.0.20
Otrs Survey ≤ 7.0.19

Attack profile CVSS 3.1 · 3.5

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2021-21434.md and follow it. Check whether this project is affected by CVE-2021-21434. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record