What is CVE-2021-24579?

CVE-2021-24579 is a high-severity vulnerability in Bold-Themes Bold Page Builder, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2021-08-30.

How severe is CVE-2021-24579?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2021-24579 known to be exploited?

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

Deserialization in Bold-Themes Bold Page Builder

CVE-2021-24579

The bt_bb_get_grid AJAX action of the Bold Page Builder WordPress plugin before 3.1.6 passes user input into the unserialize() function without any validation or sanitisation, which could lead to a PHP Object Injection. Even though the plugin did not contain a suitable gadget to fully exploit the issue, other installed plugins on the blog could allow such issue to be exploited and lead to RCE in some cases.

Vulnerability class: Insecure Deserialization

EPSS: 0.082 (94.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Bold-themes Bold_page_builder
Unknown Bold Page Builder — versions 3.1.6

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

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-2021-24579?: CVE-2021-24579 is a high-severity vulnerability in Bold-Themes Bold Page Builder, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2021-08-30.
How severe is CVE-2021-24579?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-24579 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.