Cross-site scripting in Rocket.Chat
Priority LOW 27CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
A vulnerability has been discovered in Rocket.Chat where a markdown parsing issue in the "Search Messages" feature allows the insertion of malicious tags. This can be exploited on servers with content security policy disabled possible leading to some issues attacks like account takeover.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00389 33rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Rocket.Chat | This issue has been fixed in version 6.0> and is backported for the supported versions. Check this document for more info: https://docs.rocket.chat/resources/get-support/enterprise-support#rocket.chat-versions | — | No fix listed | CNA |
- Rocket.Chat Vendor— Affected This issue has been fixed in version 6.0> and is backported for the supported versions. Check this document for more info: https://docs.rocket.chat/resources/get-support/enterprise-support#rocket.chat-versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* | before 6.0.0 | Vulnerable | Rocket.Chat |
- cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* Versions before 6.0.0 Vulnerable ·Rocket.Chat
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28358
- 2026-10-03 Alias added: GHSA-wc38-cjg3-q72x
References
Advisory 1
More Rocket.chat vulnerabilities
- TI-2021-05772 A improper input sanitization vulnerability exists in Rocket.Chat server 3.11, 3.12 &… CVSS 3.1CRITICAL 9.8
- TI-2022-13921 SQL injection in Rocket.Chat CVSS 3.1HIGH 8.8
- TI-2026-18910 Rocket.Chat Unauthorized Access to OAuth App Details CVSS 3.1HIGH 7.7
- TI-2022-12398 Improper authentication in Rocket.Chat Mobile app CVSS 3.1MEDIUM 6.8
- TI-2022-13929 Information disclosure in Rocket.Chat CVSS 3.1MEDIUM 6.5
- TI-2022-15931 Cross-site scripting in Rocket.chat CVSS 3.1MEDIUM 5.4
Sources
- CVE-2023-28358 · CVE Program
- CVE-2023-28358 · NVD
- FIRST EPSS
- GHSA-wc38-cjg3-q72x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences