CVE-2023-7113

LOWNVD 3.73.7—

3.7

Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.

CVSS v3: 3.7
EG Score: 3.7(medium)
EPSS: 72.9%
KEV: Not listed

Published

December 29, 2023

Last Modified

November 21, 2024

References (2)

responsibledisclosure@mattermosthttps://mattermost.com/security-updates
af854a3a-2127-422b-91ae-364da2661108https://mattermost.com/security-updates

Affected Packages

(4 across 1 ecosystem)

Go(4)

Package	Vulnerable range	Fixed in	Dependents
github.com/mattermost/mattermost-server	—	—	—
github.com/mattermost/mattermost-server/v5	—	—	—
github.com/mattermost/mattermost-server/v6	—	—	—
github.com/mattermost/mattermost/server/v8	—	—	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-79Cross-site Scripting (XSS)

Data Freshness Timeline

(refreshed 10× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-24 11:18 UTCEG score recompute

Frequently asked(5)

What is CVE-2023-7113?

CVE-2023-7113 is a low vulnerability published on December 29, 2023. Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client.

When was CVE-2023-7113 disclosed?

CVE-2023-7113 was first published in the National Vulnerability Database on December 29, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-7113 actively exploited?

CVE-2023-7113 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 72.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-7113?

CVE-2023-7113 has a CVSS v3 base score of 3.7 (NVD).

How do I remediate CVE-2023-7113?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-7113, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2023-7113

📅 Published

🔄 Last Modified

🔗 References (2)

Affected Packages

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2023-7113?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)