CVE-2020-8020 - CVE House
Back to Database
Status published Medium CVE-2020-8020

Persistent XSS in markdown parser used by obs-server

Vulnerability Description

A Improper Neutralization of Input During Web Page Generation vulnerability in open-build-service allows remote attackers to store arbitrary JS code to cause XSS. This issue affects: openSUSE open-build-service versions prior to 7cc32c8e2ff7290698e101d9a80a9dc29a5500fb.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-8020

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Victor Pereira of SUSE

References

More from openSUSE

View All →
CVE-2025-53881
SUSE-specific logrotate configuration allows escalation from mail user/group to root
Medium 6.9
CVE-2025-46810
A UNIX Symbolic Link (Symlink) Following vulnerability in the packaging...
High 8.5
CVE-2024-49506
Fixed temporary file path in aeon-checks allows fixing of disk encryption key
High 7.3
CVE-2024-49505
XSS vulnerability found in OpenSuse MirrorCache
Medium 5.3
CVE-2023-32184
A Insecure Storage of Sensitive Information vulnerability in openSUSE opensuse-welcome...
High 7.8

Affected Vendor

Affected Software

open-build-service
Vulnerable Versions:
open-build-service

Timeline

Official Publish: May 13th, 2020
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise
Initial Access
T1059.007 JavaScript
Execution
T1539 Steal Web Session Cookie
Collection
T1213 Data from Information Repositories
Collection
T1567 Exfiltration Over Web Service
Exfiltration
T1491.001 Defacement
Impact