Chained Quiz <= 1.3.5 — Unauthenticated Insecure Direct Object Reference via Cookie
CVE-2025-10493Published · Updated Action summary
Affected: ≤1.3.5Update to 1.3.6 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Chained Quiz chained-quiz
- Affected≤ 1.3.5
- Patched in1.3.6
Update to 1.3.6 or newer.
You are affected if you run ≤ 1.3.5. Version 1.3.6 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Chained Quiz.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 1.3.6, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Chained Quiz to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to 0xsabre.
The Chained Quiz plugin for WordPress is vulnerable to Insecure Direct Object Reference in version 1.3.4 and below via the quiz submission and completion mechanisms due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to hijack and modify other users' quiz attempts by manipulating the chained_completion_id cookie value, allowing them to alter quiz answers, scores, and results of any user. The vulnerability was partially patched in versions 1.3.4 and 1.3.5.
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 Chained Quiz
All 25| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤1.4.1Update to 1.4.2 | CVE-2026-108494 | |
| Medium5.5 | Authenticated (Admin+) Server-Side Request Forgery ≤1.3.2.9Update to 1.3.3 | CVE-2025-24701 | |
| Medium5.3 | Missing Authorization ≤1.3.2.8Update to 1.3.2.9 | CVE-2024-37921 | |
| Medium4.4 | Authenticated (Administrator+) Stored Cross-Site Scripting ≤1.3.2.8Update to 1.3.2.9 | CVE-2024-37446 | |
| Medium5.5 | Authenticated (Admin+) Stored Cross-Site Scripting ≤1.3.2.5Update to 1.3.2.6 | CVE-2023-25027 |
- High7.2Unauthenticated Stored Cross-Site Scripting
≤1.4.1Update to 1.4.2
- Medium5.5Authenticated (Admin+) Server-Side Request Forgery
≤1.3.2.9Update to 1.3.3
- Medium5.3Missing Authorization
≤1.3.2.8Update to 1.3.2.9
- Medium4.4Authenticated (Administrator+) Stored Cross-Site Scripting
≤1.3.2.8Update to 1.3.2.9
- Medium5.5Authenticated (Admin+) Stored Cross-Site Scripting
≤1.3.2.5Update to 1.3.2.6
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. 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.