Syed Balkhi User Feedback Plugin up to 1.10.1 on WordPress authorization
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.1 | $0-$5k | 0.00 |
Summary
A vulnerability, which was classified as critical, has been found in Syed Balkhi User Feedback Plugin up to 1.10.1 on WordPress. Affected by this issue is some unknown functionality. Performing a manipulation results in authorization. This vulnerability is cataloged as CVE-2026-39476. It is possible to initiate the attack remotely. There is no exploit available.
Details
A vulnerability classified as critical has been found in Syed Balkhi User Feedback Plugin up to 1.10.1 on WordPress. This affects an unknown functionality. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
Missing Authorization vulnerability in Syed Balkhi User Feedback userfeedback-lite allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Feedback: from n/a through <= 1.10.1.
The weakness was shared by Trương Hữu Phúc. The advisory is shared at patchstack.com. This vulnerability is uniquely identified as CVE-2026-39476 since 04/07/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/08/2026).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.1
VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: AuthorizationCWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
04/07/2026 CVE reserved04/08/2026 Advisory disclosed
04/08/2026 VulDB entry created
04/08/2026 VulDB entry last update
Sources
Advisory: patchstack.comResearcher: Trương Hữu Phúc
Status: Not defined
CVE: CVE-2026-39476 (🔒)
GCVE (CVE): GCVE-0-2026-39476
GCVE (VulDB): GCVE-100-356049
Entry
Created: 04/08/2026 11:15Changes: 04/08/2026 11:15 (54)
Complete: 🔍
Cache ID: 216:29C:103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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