WordPress plugin
Image Source Control Lite < 2.3.1 — Insecure Direct Object Reference
CVE-2021-24781Published · Updated Action summary
Affected: <2.3.1Update to 2.3.1 or newer
All remediation steps- Severity
- Medium4.3
- CVSS
- 4.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Image Source Control Lite – Show Image Credits and Captions image-source-control-isc
- Affected< 2.3.1
- Patched in2.3.1
Update to 2.3.1 or newer.
You are affected if you run < 2.3.1. Version 2.3.1 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Image Source Control Lite – Show Image Credits and Captions.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.3.1, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Image Source Control Lite – Show Image Credits and Captions to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to apple502j.
The Image Source Control WordPress plugin before 2.3.1 allows users with a role as low as Contributor to change arbitrary post meta fields of arbitrary posts (even those they should not be able to edit).
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Image Source Control Lite – Show Image Credits and Captions
All 5| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Author+) Stored Cross-Site Scripting via 'Image Source' Field ≤3.9.1Update to 3.9.2 | CVE-2026-4852 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤2.28.0Update to 2.28.1 | CVE-2024-13515 | |
| Medium6.1 | Reflected Cross-Site Scripting ≤2.29.0Update to 2.29.1 | CVE-2025-22711 | |
| Medium5.3 | Sensitive Information Exposure via Log File ≤2.17.0Update to 2.17.1 | CVE-2023-52187 |
- Medium6.4Authenticated (Author+) Stored Cross-Site Scripting via 'Image Source' Field
≤3.9.1Update to 3.9.2
- Medium6.1Reflected Cross-Site Scripting
≤2.28.0Update to 2.28.1
- Medium6.1Reflected Cross-Site Scripting
≤2.29.0Update to 2.29.1
- Medium5.3Sensitive Information Exposure via Log File
≤2.17.0Update to 2.17.1
Timeline
CVE published
Severity medium, CVSS 4.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.