4.8

CVE-2021-21434: otrs ag survey Cross-site Scripting

CVSS: 4.8v3.1MediumModified
AliasesUBUNTU-CVE-2021-21434
Published 08-02-2021Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2021-21434 is a medium (CVSS 4.8) Cross-site Scripting vulnerability in otrs ag survey. EPSS estimates a 0.66% chance of exploitation in the next 30 days, higher than 50.5% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.8/10
010
Medium · v3.1 (NVD)
EPSS score
0.66%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-02-2021
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.66%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

0.00 pp

From 0.66% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.66%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Otrs1 product
  • survey≥ 6.0.0, ≤ 6.0.20 | ≥ 7.0.0, ≤ 7.0.19
Otrs ag1 product
  • survey≥ 6.0.x, ≤ 6.0.20 | ≥ 7.0.x, ≤ 7.0.19
Ubuntu1 product
  • otrs2All versions (No fix recorded)

3 vendors · 3 products

References

3 links