CVE-2021-24488Public exploitNetwork attack vector

Reflected script execution via unescaped settings inputs

Published Aug 2, 2021 · Updated Aug 3, 2024

Reflected XSS in PickPlugins Post Grid before 2.1.8 allows remote attackers to execute scripts through crafted settings-page requests. The slider-import keyword and settings tab values are inserted into administrative page output without adequate sanitization or context-appropriate escaping. Exploitation requires an authenticated administrator to open the crafted request, after which the script runs in the victim's WordPress origin with the victim's browser privileges.

CVSS severity6.1
Medium
EPSS probability11.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in PickPlugins Post Grid before 2.1.8 allows remote attackers to execute scripts through crafted settings-page requests. The slider-import keyword and settings tab values are inserted into administrative page output without adequate sanitization or context-appropriate escaping. Exploitation requires an authenticated administrator to open the crafted request, after which the script runs in the victim's WordPress origin with the victim's browser privileges.

The record

CVE
CVE-2021-24488
Published
Aug 2, 2021
Updated
Aug 3, 2024
Vendor
PickPlugins
Product
Post Grid
Classifications
CWE-79, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 2, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.1.8 <2.1.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PickPlugins · Post Gridversion=2.1.8 <2.1.8

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.001User Execution: Malicious Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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