CVE-2023-5421: otrs ag otrs Improper Input Validation
Vulnerability summary
CVE-2023-5421 is a medium (CVSS 5.5) Improper Input Validation vulnerability in otrs ag otrs. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 37.6% of scored vulnerabilities.
Timeline
- 16-10-2023PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
An attacker who is logged into OTRS as an user with privileges to create and change customer user data may manipulate the CustomerID field to execute JavaScript code that runs immediatly after the data is saved.The issue onlyoccurs if the configuration for AdminCustomerUser::UseAutoComplete was changed before. This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.
CVSS metrics
3 scores · 3 sources · 1 version- CVE.orgCNA3.5LowCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
+0.07 pp
From 0.37% on 22-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
Affected systems
Otrs ag2 products
- otrs≥ 7.0.x, < 7.0.47 | ≥ 8.0.x, < 8.0.37
- ((otrs)) community edition≥ 6.0.x, ≤ 6.0.34
Ubuntu2 products
- otrs2All versions (No fix recorded)
- znunyAll versions (No fix recorded)
Otrs1 product
- otrs≥ 6.0.0, ≤ 6.0.34 | ≥ 7.0.0, < 7.0.47 | ≥ 8.0.0, < 8.0.37
3 vendors · 5 products