CVE-2021-24488

MEDIUM NUCLEI

Post Grid < 2.1.8 - Reflected Cross-Site Scripting via Slider Import Search Feature and Tab Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-24488. PoCs published by 0xB9. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit demonstrates a reflected XSS vulnerability in WordPress Plugin Post Grid 2.1.1 via the 'tab' and 'keyword' parameters in admin settings. The PoC uses simple script injection to trigger an alert, confirming the vulnerability.

Description

The slider import search feature and tab parameter of the Post Grid WordPress plugin before 2.1.8 settings are not properly sanitised before being output back in the pages, leading to Reflected Cross-Site Scripting issues

Exploits (1)

exploitdb WORKING POC
by 0xB9 · textwebappsphp
https://www.exploit-db.com/exploits/50705

This exploit demonstrates a reflected XSS vulnerability in WordPress Plugin Post Grid 2.1.1 via the 'tab' and 'keyword' parameters in admin settings. The PoC uses simple script injection to trigger an alert, confirming the vulnerability.

Classification
Working Poc 100%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: WordPress Plugin Post Grid 2.1.1
Auth required
Prerequisites: Access to WordPress admin panel · Post Grid plugin version 2.1.1 installed
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

WordPress Post Grid <2.1.8 - Cross-Site Scripting
MEDIUMby cckuailong

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://wpscan.com/vulnerability/1fc0aace-ba85-4939-9007-d150960add4a

Scores

CVSS v3 6.1
EPSS 0.1129
EPSS Percentile 95.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (1)
pickplugins/post_grid < 2.1.8
Published Aug 02, 2021
Tracked Since Feb 18, 2026