GHSA-hv5f-73mr-7vvj

ghsaUSosv

Cross-site Scripting in Mattermost

view advisory published 2021-09-23Licence: CC-BY-4.0

Mattermost 5.38 and earlier fails to sufficiently sanitize clipboard contents, which allows a user-assisted attacker to inject arbitrary web script in product deployments that explicitly disable the default CSP.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2021-37860US	medium6.1	0.63% (50th)	—	2021-09-22
Mattermost 5.38 and earlier fails to sufficiently sanitize clipboard contents, which allows a user-assisted attacker to inject arbitrary web script in product deployments that expl…

references

External citations — patches, advisories, analysis.

https://docs.mattermost.com/install/self-managed-changelog.html#release-v5-39-quality-releaseWEB
https://github.com/mattermost/mattermost-serverWEB
https://mattermost.com/security-updatesWEB
https://nvd.nist.gov/vuln/detail/CVE-2021-37860ADVISORY

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