CVE-2021-39175
In versions prior to 1.9.0, an unauthenticated attacker can inject arbitrary JavaScript into the speaker-notes of the slide-mode feature by embedding an iframe hosting the malicious code into the slides or by embedding the HedgeDoc instance into another…
Does this matter?
Lower severity and a low EPSS score (0.60%). Track it; it rarely justifies an emergency change on its own.
Description
HedgeDoc is a platform to write and share markdown. In versions prior to 1.9.0, an unauthenticated attacker can inject arbitrary JavaScript into the speaker-notes of the slide-mode feature by embedding an iframe hosting the malicious code into the slides or by embedding the HedgeDoc instance into another page. The problem is patched in version 1.9.0. There are no known workarounds aside from upgrading.
- CVSS 3.1
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.60% probability · 47th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-74, CWE-346, CWE-79
- Affected
- hedgedoc/hedgedoc
- Source
- security-advisories@github.com
References
- https://github.com/hedgedoc/hedgedoc/pull/1369Patch, Third Party Advisory
- https://github.com/hedgedoc/hedgedoc/pull/1375Patch, Third Party Advisory
- https://github.com/hedgedoc/hedgedoc/pull/1513Patch, Third Party Advisory
- https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-j748-779h-9697Patch, Third Party Advisory
- https://github.com/hedgedoc/hedgedoc/pull/1369Patch, Third Party Advisory
- https://github.com/hedgedoc/hedgedoc/pull/1375Patch, Third Party Advisory
- https://github.com/hedgedoc/hedgedoc/pull/1513Patch, Third Party Advisory
- https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-j748-779h-9697Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.