CVE-2021-24666

Podlove Podcast Publisher <= 3.5.5 - Unauthenticated SQL Injection

2021-08-24 00:00
dc11

Strategic Overview

Status
Patched in 3.5.6
Affected Plugin
Podlove Podcast Publisher
Affected Version
< 3.5.6
CVSS
9.8Critical
Weakness type
CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE
CVE-2021-24666
View all Podlove Podcast Publisher vulnerabilities

At a glance

CVE-2021-24666 is a critical-severity Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in the Podlove Podcast Publisher WordPress plugin, affecting versions < 3.5.6. It carries a CVSS score of 9.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.5.6; sites on affected versions should update now. Disclosed August 2021, reported by dc11.

Vulnerability Overview

The Podlove Podcast Publisher WordPress plugin before 3.5.6 contains a 'Social & Donations' module (not activated by default), which adds the rest route '/services/contributor/(?P<id>[\d]+), takes an 'id' and 'category' parameters as arguments. Both parameters can be used for the SQLi.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Podlove Podcast Publisher < 3.5.6 carries this weakness at and, and reaching it takes no account at all. SQL injection happens when request data is concatenated into a query instead of being bound as a parameter, letting an attacker change the structure of the statement rather than just its values.

A working injection can read any table the database user can see, which on a WordPress install means user records, password hashes and session or API secrets stored in options. For Podlove Podcast Publisher the fix is 3.5.6: builds < 3.5.6 are affected, anything from 3.5.6 onward is not.

Remediation

Update to version 3.5.6, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Podlove Podcast Publisher 3.5.6 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24666https://www.wordfence.com/threat-intel/vulnerabilities/id/e8c01984-e8ba-4671-b63c-46ea245e7efahttps://nvd.nist.gov/vuln/detail/CVE-2021-24666

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C