What’s Vulnerable › Vulnerabilities

CVE-2021-39248

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-17 · updated 2026-06-17
• Weakness: CWE-79

Description

Open edX through Lilac.1 allows XSS in common/static/common/js/discussion/utils.js via crafted LaTeX content within a discussion.

Affected products

• openedx edx-platform: all versions

References

• https://github.com/edx/edx-platform/pull/28379
• https://github.com/edx/edx-platform/pull/28379

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