What is CVE-2021-24751?

CVE-2021-24751 is a medium-severity vulnerability in Generateblocks, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-11-29.

How severe is CVE-2021-24751?

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

Is CVE-2021-24751 known to be exploited?

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

XSS in Generateblocks

CVE-2021-24751

The GenerateBlocks WordPress plugin before 1.4.0 does not validate the generateblocks/container block's tagName attribute, which could allow 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

Generateblocks
Unknown Generateblocks — versions 1.4.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2021-24751?: CVE-2021-24751 is a medium-severity vulnerability in Generateblocks, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-11-29.
How severe is CVE-2021-24751?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-24751 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.