SARA / Free Tools / CVE / CVE-2023-23921

CVE-2023-23921 — The vulnerability was found Moodle which exists due to insufficient sanitization

The vulnerability was found Moodle which exists due to insufficient sanitization of user-supplied data in some returnurl parameters. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in cont

CVSS
— —
EPSS
0.29% (top 48.20%)
CWE
CWE-79
Published
2023-02-17T00:00:00.000Z
Last modified
2024-08-02T10:42:27.105Z
CVSS vector
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01What is this vulnerability?

The vulnerability was found Moodle which exists due to insufficient sanitization of user-supplied data in some returnurl parameters. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website. This flaw allows a remote attacker to perform cross-site scripting (XSS) attacks.

02Affected products

VendorProductVersions
??4.1.0, 4.0.0, 3.11.0, 0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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