CVE-2021-37211

5.4 mediumEPSS 0.5%

Medium (5.4) in larvata flygo. EPSS 0.5% chance of exploitation in the next 30 days.

The bulletin function of Flygo does not filter special characters while a new announcement is added. Remoter attackers can use the vulnerability with general user’s credential to inject JavaScript and execute stored XSS attacks.

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2021-08-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

larvata:flygo

References

https://www.twcert.org.tw/tw/cp-132-4988-8f642-1.html
https://www.twcert.org.tw/tw/cp-132-4988-8f642-1.html

Check your stack JSON