Read the docs
TI-2025-09620 Aliases CVE-2025-10493GHSA-5v4m-g3m7-229m

Chained Quiz <= 1.3.5 - Unauthenticated Insecure Direct Object Reference via Cookie

Priority LOW 32CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00916 60th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
prasunsenChained Quizup to 1.3.5—No fix listedCNA
  • Chained Quiz Vendorprasunsen Affected up to 1.3.5 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:kibokolabs:chained_quiz:*:*:*:*:*:*:*:*——prasunsen
  • cpe:2.3:a:kibokolabs:chained_quiz:*:*:*:*:*:*:*:* Versions — — ·prasunsen

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-10493
  2. 2026-10-03 Alias added: GHSA-5v4m-g3m7-229m

References

Other 6

  • TI-2024-33841 WordPress Namaste! LMS plugin <= 2.6.3 - PHP Object Injection vulnerability CVSS 3.1HIGH 8.8
  • TI-2023-00405 Watu Quiz < 3.3.8.2 - Reflected XSS CVSS 3.1HIGH 7.5
  • TI-2024-02456 Watu Quiz < 3.4.1.2 - Author+ Stored XSS CVSS 3.1MEDIUM 6.8
  • TI-2025-05640 Hostel < 1.1.5.8 - Reflected XSS CVSS 3.1MEDIUM 6.1
  • TI-2024-03499 Hostel < 1.1.5.3 - Reflected XSS CVSS 3.1MEDIUM 5.9
  • TI-2022-03861 Chained Quiz <= 1.3.2.2 - Authenticated (Admin+) Stored Cross-Site Scripting via Mailchimp API Key CVSS 3.1MEDIUM 5.5
See all 83 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences