Vulnerability · Published Mar 27, 2021 · Assigned by mitre
CVE-2021-29272
Medium 6.1
In plain English
A medium-severity security flaw in the gitea package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)0.9%top 39.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
bluemonday before 1.0.5 allows XSS because certain Go lowercasing converts an uppercase Cyrillic character, defeating a protection mechanism against the "script" string.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | gitea | 1.13.7-r0 | ALPINE-CVE-2021-29272 |
| Alpine:v3.21 | gitea | 1.13.7-r0 | ALPINE-CVE-2021-29272 |
| Alpine:v3.22 | gitea | 1.13.7-r0 | ALPINE-CVE-2021-29272 |
| Alpine:v3.23 | gitea | 1.13.7-r0 | ALPINE-CVE-2021-29272 |
| Alpine:v3.24 | gitea | 1.13.7-r0 | ALPINE-CVE-2021-29272 |
| Go | github.com/microcosm-cc/bluemonday | 1.0.5 | GHSA-3x58-xr87-2fcj |
| Go | github.com/microcosm-cc/bluemonday | 1.0.5 | GO-2022-0762 |
| Ubuntu:22.04:LTS | golang-github-microcosm-cc-bluemonday | no fix listed | UBUNTU-CVE-2021-29272 |
Affected products (as reported)
References
- https://github.com/microcosm-cc/bluemonday/releases/tag/v1.0.5 x_refsource_MISC
- https://vuln.ryotak.me/advisories/4 x_refsource_MISC