Moodle cross-site scripting (XSS) vulnerability
Impact
Cross-site scripting (XSS) vulnerability in the external_format_text function in lib/externallib.php in Moodle through 2.5.9, 2.6.x before 2.6.11, 2.7.x before 2.7.8, and 2.8.x before 2.8.6 allows remote authenticated users to inject arbitrary web script or HTML into an external application via a crafted string that is visible to web services.
Source excerpt · OSVAffected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
| Affected range | Recorded fix |
|---|---|
| Earlier releases before 2.6.11Ecosystem versions | 2.6.11 |
| From 2.7.0 before 2.7.8Ecosystem versions | 2.7.8 |
| From 2.8.0 before 2.8.6Ecosystem versions | 2.8.6 |
Version evidence: OSV · GHSA-9fmw-m4qx-6cq8
View original version evidence (60 explicit versions)
Original source description
Cross-site scripting (XSS) vulnerability in the external_format_text function in lib/externallib.php in Moodle through 2.5.9, 2.6.x before 2.6.11, 2.7.x before 2.7.8, and 2.8.x before 2.8.6 allows remote authenticated users to inject arbitrary web script or HTML into an external application via a crafted string that is visible to web services.
References
- Security advisory nvd.nist.gov/vuln/detail/CVE-2015-3178
- Patch github.com/moodle/moodle/commit/28947c1d7d9c53781989b9da7ceb2cafdd144749
- Patch github.com/moodle/moodle/commit/2c7d13dba37aa0c850c62037b951efd6dc1b0f78
- Patch github.com/moodle/moodle/commit/77067fbb3a248ac2f1fa4b3c20e5b81f768940e5
- Patch github.com/moodle/moodle/commit/7f5bd0da0e25feb3b6da3908b6672a58af82e12f
- Patch github.com/moodle/moodle/commit/b4da1e0ae4f63ef0bb14b8bf5c0b86cd00f2af4b
- Patch github.com/moodle/moodle/commit/d62d36c657a5df45ee286722490abb7901381da6
- Source reference github.com/moodle/moodle
- Source reference moodle.org/mod/forum/discuss.php
- Security advisory web.archive.org/web/20200228054910/http://www.securityfocus.com/bid/74726
- Security advisory web.archive.org/web/20201201000000*/http://www.securitytracker.com/id/1032358
- Source reference git.moodle.org/gw
- Security advisory openwall.com/lists/oss-security/2015/05/18/1