CVE-2026-85271

🗓️ 18 Sep 2026 20:38:40Reported by GitHub_MType

cve🔗 web.nvd.nist.gov👁 32 Views🌐 WEB

Enrolled student CSS injection in Open edX notification emails enables tracking and phishing.

Reporter	Title	Published	Views	Family All 8
Circl	CVE-2026-85271	27 Sep 202615:30	–	circl
Cvelist	CVE-2026-85271 Open edX Platform: Stored CSS Injection in Email Digest Notifications via Unsanitized Thread Title (incomplete patch of CVE-2026-42857)	18 Sep 202620:38	–	cvelist
EUVD	EUVD-2026-83443	18 Sep 202620:38	–	euvd
Mend	CVE-2026-85271	18 Sep 202620:38	–	mend
NVD	CVE-2026-85271	18 Sep 202621:18	–	nvd
Positive Technologies	PT-2026-95710	18 Sep 202600:00	–	ptsecurity
Rapid7 Vulnerability Database (full)	CVE-2026-85271: Improper Neutralization of Input During Web Page Generation	18 Sep 202600:00	–	rapid7
Vulnrichment	CVE-2026-85271 Open edX Platform: Stored CSS Injection in Email Digest Notifications via Unsanitized Thread Title (incomplete patch of CVE-2026-42857)	18 Sep 202620:38	–	vulnrichment

[
  {
    "vendor": "openedx",
    "product": "openedx-platform",
    "versions": [
      {
        "version": ">= release/redwood.1, < release/ulmo.4",
        "status": "affected"
      }
    ]
  }
]

Source	Link
github	www.github.com/openedx/openedx-platform/releases/tag/release/verawood.1
github	www.github.com/openedx/openedx-platform/releases/tag/release/ulmo.4
github	www.github.com/openedx/openedx-platform/commit/52f2b3bb3e6fac2601c29e8f926c81498d20bb0b
github	www.github.com/openedx/openedx-platform/commit/2af03d21b4142e53e375c7f3699b313e92ec5121
github	www.github.com/openedx/openedx-platform/security/advisories/GHSA-rv5w-f4r5-h77g
github	www.github.com/openedx/openedx-platform/commit/5eae6e51a8797cd3b87cc132f5de73d52561c4d7

Parameter	Position	Path	Description	CWE
post_title	request body	/api/discussions/notifications/	The post_title parameter in the discussion notifications API is not sanitized, allowing an attacker to inject CSS-capable markup that is rendered as safe HTML in digest and batched emails.	CWE-79

24 Sep 2026 21:25Current

5.8Medium risk

Vulners AI Score5.8

CVSS 3.16.1

EPSS0.00354

SSVC

CWE-79