Description
The Alert Box Block – Display notice/alerts in the front end. plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's Alert Box block in all versions up to, and including, 1.1.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
References (3)
Core 3
Core References
Scores
CVSS v3
6.4
EPSS
0.0027
EPSS Percentile
18.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
bplugins/Alert Box Block – Display Custom Alerts and Messages
< 1.1.3
bplugins/Alert Box Block – Display notice/alerts in the front end.
< 1.1.2
Published
Mar 25, 2025
Tracked Since
Feb 18, 2026