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CVE-2021-37393

MEDIUMCVSS 5.4/10EPSS 0.53%

Last modified

CVE-2021-37393 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. In RPCMS v1.8 and below, the "nickname" variable is not properly sanitized before being displayed on page. Attacker can use "update password" function to inject XSS payloads into nickname variable, and achieve stored XSS. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

In RPCMS v1.8 and below, the "nickname" variable is not properly sanitized before being displayed on page. Attacker can use "update password" function to inject XSS payloads into nickname variable, and achieve stored XSS. Users who view the articles published by the injected user will trigger the XSS.

Metrics

CVSS 3.1
5.4/10

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

EPSS Probability
0.53%

40.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
RpcmsRpcms<= 1.8

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-37393?
In RPCMS v1.8 and below, the "nickname" variable is not properly sanitized before being displayed on page. Attacker can use "update password" function to inject XSS payloads into nickname variable, and achieve stored XSS. Users who view the articles published by the injected user will trigger the XSS.
How severe is CVE-2021-37393?
CVE-2021-37393 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2021-37393?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-37393?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST