Vulnerability Details : CVE-2021-3258
Potential exploit
Question2Answer Q2A Ultimate SEO Version 1.3 is affected by cross-site scripting (XSS), which may lead to arbitrary remote code execution.
Vulnerability category: Cross site scripting (XSS)Execute code
Products affected by CVE-2021-3258
- cpe:2.3:a:qa-themes:q2a_ultimate_seo:1.3:*:*:*:*:question2answer:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3258
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3258
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
3.5
|
LOW | AV:N/AC:M/Au:S/C:N/I:P/A:N |
6.8
|
2.9
|
NIST | |
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
2.3
|
2.7
|
NIST |
CWE ids for CVE-2021-3258
-
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-3258
-
https://github.com/q2a-projects/Q2A-Ultimate-SEO/commit/20069f28147c6f2c3acca4e3f6f5154537c5d536
Sanitizing Meta output · q2a-projects/Q2A-Ultimate-SEO@20069f2 · GitHubPatch;Third Party Advisory
-
https://www.question2answer.org/qa/58520/important-q2a-ultimate-seo-important-update
[Important] Q2A Ultimate SEO: Important Update - Question2Answer Q&ARelease Notes;Vendor Advisory
-
https://nirmaldahal.com.np/sxss-to-defacement-and-account-takeover/
Just a moment...Exploit;Third Party Advisory
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