What is CVE-2021-24817?

CVE-2021-24817 is a medium-severity vulnerability in Ultimate Nofollow Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-12-13.

How severe is CVE-2021-24817?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2021-24817 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Ultimate Nofollow Project

CVE-2021-24817

The Ultimate NoFollow WordPress plugin through 1.4.8 does not sanitise and escape the href attribute of its shortcodes, allowing users with a role as low as contributor to perform Cross-Site Scripting attacks

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (45.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Ultimate_nofollow_project Ultimate_nofollow
Unknown Ultimate Nofollow — versions 1.4.8

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

contact@wpscan.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-24817?: CVE-2021-24817 is a medium-severity vulnerability in Ultimate Nofollow Project, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-12-13.
How severe is CVE-2021-24817?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-24817 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.