CVE-2020-8020 json
Persistent XSS in markdown parser used by obs-server
published 2020-05-13 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-28933
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 60%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- openSUSE open-build-service 7cc32c8e2ff7290698e101d9a80a9dc29a5500fb
- open-build-service Debian 12 2.9.4-4
debian advisories DEBIAN-CVE-2020-8020
Exploit prediction
0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- openSUSE open-build-service
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
bugzilla.suse.com
/show_bug.cgi?id=1171439
issue-tracking, vendor-advisory
-
lists.debian.org
/debian-lts-announce/2021/02/msg00006.html
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-8020
- NVD CVE-2020-8020
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.