code-projects Chat System 1.0 MD5 Hash update_user.php Password weak hash
Summary
A vulnerability was found in code-projects Chat System 1.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file update_user.php of the component MD5 Hash Handler. Such manipulation of the argument Password leads to weak hash. This vulnerability is listed as CVE-2026-7103. The attack may be performed from remote. In addition, an exploit is available.
Details
A vulnerability, which was classified as problematic, has been found in code-projects Chat System 1.0. Affected by this issue is an unknown code of the file update_user.php of the component MD5 Hash Handler. The manipulation of the argument password with an unknown input leads to a weak hash vulnerability. Using CWE to declare the problem leads to CWE-328. The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack). Impacted is confidentiality.
The advisory is available at gist.github.com. This vulnerability is handled as CVE-2026-7103. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known. This vulnerability is assigned to T1600.001 by the MITRE ATT&CK project.
It is declared as proof-of-concept. By approaching the search of inurl:update_user.php it is possible to find vulnerable targets with Google Hacking.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
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Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://code-projects.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 3.7VulDB Meta Temp Score: 3.4
VulDB Base Score: 3.7
VulDB Temp Score: 3.4
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: Weak hashCWE: CWE-328 / CWE-327 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Google Hack: 🔒
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
04/26/2026 Advisory disclosed04/26/2026 VulDB entry created
04/26/2026 VulDB entry last update
Sources
Vendor: code-projects.orgAdvisory: gist.github.com
Status: Not defined
CVE: CVE-2026-7103 (🔒)
GCVE (CVE): GCVE-0-2026-7103
GCVE (VulDB): GCVE-100-359678
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 04/26/2026 11:09Changes: 04/26/2026 11:09 (56)
Complete: 🔍
Submitter: c4ttr4ck
Cache ID: 216::103
Submit
Accepted
- Submit #800384: code-projects Chat System Using PHP 1.0 nsecure Direct Object Reference (IDOR) + SQL Injection + Weak Pa (by c4ttr4ck)
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