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CVE-2026-90857

MEDIUM 5.3 PoC AVAILABLE ALL-YEARS

Published 2026-09-15 · Last modified 2026-09-15 · VulDB · NVD: Deferred

A vulnerability was detected in SourceCodester College Notes Gallery Management System 1.0. Affected is an unknown function of the file /dashboard/userprofile.php of the component Profile Upload. Performing a manipulation of the argument image results in unrestricted upload. The attack may be initiated remotely. The exploit is now public and may be used.

EXPLOIT AVAILABLE

Public exploit or PoC code exists. The barrier to attack is reduced — watch closely.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 29th percentile

○ In CISA KEV● Public exploit / PoC◆ SSVC: exploitation poc, automatable no

Impact if exploited

5.3CVSS 4.0 · MEDIUM · CNA

  • ConfidentialityLow
  • IntegrityLow
  • AvailabilityLow

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires a low-privilege account
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable
  • ✓Requirements: No special attack requirements

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept & exploit code

Test against your own equipment

curl -s https://vulnpedia.com/cve/CVE-2026-90857/poc.jsonMachine-readable PoC index for this CVE (for automation).

For defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-90857/poc.json

Affected

Vendors Sourcecodester

Products College Notes Gallery Management System

Weakness (CWE)

  • CWE-434: Unrestricted Upload
  • CWE-284: Improper Access Controls

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

All CVSS metrics

  • MEDIUM 5.3 v4.0 · CNA Primary
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
  • MEDIUM 6.3 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
  • MEDIUM 6.3 v3.0 · CNA Primary
    CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
  • MEDIUM 6.5 v2.0 · CNA Primary
    AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
  • LOW 2.1 v4.0 · NVD Secondary
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • MEDIUM 6.3 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  • MEDIUM 6.5 v2.0 · NVD Secondary
    AV:N/AC:L/Au:S/C:P/I:P/A:P

References

Exploits & PoC

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS