CVE-2020-8291
MEDIUMCVSS 6.1/10EPSS 0.61%
Last modified
CVE-2020-8291 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.. EPSS estimates a 0.61% chance of exploitation in the next 30 days.
Description
A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Rocket.Chat | Rocket.Chat | < 3.9.0 |
References
- https://github.com/RocketChat/Rocket.Chat/pull/19854Patch, Third Party Advisory
- https://github.com/RocketChat/Rocket.Chat/pull/19854Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-8291?
A link preview rendering issue in Rocket.Chat versions before 3.9 could lead to potential XSS attacks.
How severe is CVE-2020-8291?
CVE-2020-8291 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.
How do I fix CVE-2020-8291?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2020
- CVE-2020-8285curl 7.21.0 to and including 7.73.0 is vulnerable to uncontr…7.5
- CVE-2020-8286curl 7.41.0 through 7.73.0 is vulnerable to an improper chec…7.5
- CVE-2020-8287Node.js versions before 10.23.1, 12.20.1, 14.15.4, 15.5.1 al…6.5
- CVE-2020-8288The `specializedRendering` function in Rocket.Chat server be…5.4
- CVE-2020-8289Backblaze for Windows before 7.0.1.433 and Backblaze for mac…7.8
- CVE-2020-8290Backblaze for Windows and Backblaze for macOS before 7.0.0.4…7.8
- CVE-2020-8292Rocket.Chat server before 3.9.0 is vulnerable to a self cros…5.4
- CVE-2020-8293A missing input validation in Nextcloud Server before 20.0.2…6.5
- CVE-2020-8294A missing link validation in Nextcloud Server before 20.0.2,…5.4
- CVE-2020-8295A wrong check in Nextcloud Server 19 and prior allowed to pe…7.5
- CVE-2020-8296Nextcloud Server prior to 20.0.0 stores passwords in a recov…6.7
- CVE-2020-8297Nextcloud Deck before 1.0.2 suffers from an insecure direct …4.3
Are you affected by CVE-2020-8291?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
