CVE-2021-3258

Public Exploit

Description

Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.

Category

5.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.52%
Vendor Advisory question2answer.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://nirmaldahal.com.np/sxss-to-defacement-and-account-takeover/ third party advisory exploit
https://www.question2answer.org/qa/58520/important-q2a-ultimate-seo-important-update release notes vendor advisory
https://github.com/q2a-projects/Q2A-Ultimate-SEO/commit/20069f28147c6f2c3acca4e3f6f5154537c5d536 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-3258?
CVE-2021-3258 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3258?
To fix CVE-2021-3258, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3258 being actively exploited in the wild?
It is possible that CVE-2021-3258 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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