GHSA-c9vx-2g7w-rp65
GitHub Security Advisory
matrix-react-sdk vulnerable to XSS in Export Chat feature
Advisory Details
### Description
The Export Chat feature includes certain attacker-controlled elements in the generated document without sufficient escaping, leading to stored XSS.
### Impact
Since the Export Chat feature generates a separate document, an attacker can only inject code run from the `null` origin, restricting the impact.
However, the attacker can still potentially use the XSS to leak message contents. A malicious homeserver is a potential attacker since the affected inputs are controllable server-side.
### Patches
This was patched in matrix-react-sdk 3.76.0.
### Workarounds
None, other than not using the Export Chat feature.
### References
N/A
Affected Packages
Related CVEs
Key Information
Dataset
Data from GitHub Advisory Database. This information is provided for research and educational purposes.