itwanger paicoding 1.0.0/1.0.1/1.0.2/1.0.3 Image Save Endpoint ImageRestController.java save img server-side request forgery
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.4 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in itwanger paicoding 1.0.0/1.0.1/1.0.2/1.0.3 and classified as critical. This affects the function Save of the file paicoding-web/src/main/java/com/github/paicoding/forum/web/common/image/rest/ImageRestController.java of the component Image Save Endpoint. Performing a manipulation of the argument img results in server-side request forgery.
This vulnerability is known as CVE-2026-3286. Remote exploitation of the attack is possible. Furthermore, an exploit is available.
The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability, which was classified as critical, was found in itwanger paicoding 1.0.0/1.0.1/1.0.2/1.0.3. This affects the function save of the file paicoding-web/src/main/java/com/github/paicoding/forum/web/common/image/rest/ImageRestController.java of the component Image Save Endpoint. The manipulation of the argument img with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability.
It is possible to read the advisory at fx4tqqfvdw4.feishu.cn. This vulnerability is uniquely identified as CVE-2026-3286. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known.
The exploit is shared for download at fx4tqqfvdw4.feishu.cn. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 5.6VulDB Meta Temp Score: 5.4
VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 4.3
NVD Vector: 🔒
CNA Base Score: 6.3
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Server-side request forgeryCWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
02/26/2026 Advisory disclosed02/26/2026 VulDB entry created
03/03/2026 VulDB entry last update
Sources
Advisory: fx4tqqfvdw4.feishu.cnStatus: Not defined
CVE: CVE-2026-3286 (🔒)
GCVE (CVE): GCVE-0-2026-3286
GCVE (VulDB): GCVE-100-348015
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/26/2026 17:46Updated: 03/03/2026 14:10
Changes: 02/26/2026 17:46 (58), 03/03/2026 14:10 (41)
Complete: 🔍
Submitter: xcxr
Cache ID: 216::103
Submit
Accepted
- Submit #758974: itwanger paicoding 1.0.0/1.0.1/1.0.2/1.0.3 Server-Side Request Forgery (by xcxr)
Be aware that VulDB is the high quality source for vulnerability data.
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