XSS vector in slide mode speaker-view
CVE-2021-39175

8.1HIGH

Key Information:

Vendor

Hedgedoc

Status
Hedgedoc
Vendor
CVE Published:
30 August 2021

What is CVE-2021-39175?

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.

Affected Version(s)

hedgedoc < 1.9.0

References

https://github.com/hedgedoc/hedgedoc/security/advisories/...
x_refsource_CONFIRM
https://github.com/hedgedoc/hedgedoc/pull/1369
x_refsource_MISC
https://github.com/hedgedoc/hedgedoc/pull/1375
x_refsource_MISC

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.