What’s Vulnerable › Vulnerabilities

CVE-2021-28115

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-03-09 · updated 2026-06-17
• Weakness: CWE-79

Description

The OUGC Feedback plugin before 1.8.23 for MyBB allows XSS via the comment field of feedback during an edit operation.

Affected products

• Ougc Feedback Project Ougc Feedback: before 1.8.23 — fixed in 1.8.23

How to fix

Upgrade to a fixed version: Ougc Feedback Project Ougc Feedback 1.8.23. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/161746/MyBB-OUGC-Feedback-1.8.22-Cross-Site-Scripting.html
• https://github.com/Sama34/OUGC-Feedback/pull/31/commits/ceef7c06359e5dcbaffe90a40884265c5754068c
• http://packetstormsecurity.com/files/161746/MyBB-OUGC-Feedback-1.8.22-Cross-Site-Scripting.html
• https://github.com/Sama34/OUGC-Feedback/pull/31/commits/ceef7c06359e5dcbaffe90a40884265c5754068c

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