CVE-2026-109933
Otter Blocks < 3.2.8 - Contributor+ Stored XSS via Block Style Attributes
Description
The Otter Blocks WordPress plugin before 3.2.8 does not properly sanitize and escape user-supplied block styling values before writing them into an inline stylesheet, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor, including administrators, views the affected post.
INFO
Published Date :
Oct. 23, 2026, 6:17 a.m.
Last Modified :
Oct. 23, 2026, 6:17 a.m.
Remotely Exploit :
No
Source :
[email protected]
Solution
- Update the Otter Blocks WordPress plugin.
- Verify plugin version is 3.2.8 or higher.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-109933.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/a2a19770-9ee2-4164-9ea6-a882cf0085e9/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-109933 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-109933
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-109933 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-109933 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Description The Otter Blocks WordPress plugin before 3.2.8 does not properly sanitize and escape user-supplied block styling values before writing them into an inline stylesheet, allowing users with contributor-level access and above to inject arbitrary web scripts that execute when any visitor, including administrators, views the affected post. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/109xxx/CVE-2026-109933.json">CVE-2026-109933</a> Added Reference https://wpscan.com/vulnerability/a2a19770-9ee2-4164-9ea6-a882cf0085e9/