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CVE-2026-77392

MEDIUM 5.3 PoC AVAILABLE

Published 2026-08-21 · Last modified 2026-08-21

A weakness has been identified in SourceCodester Dynamic Input Field Generator Using HTML, CSS, and PHP 1.0. This impacts the function saveUser of the file /public/submit.php. This manipulation of the argument Researcher causes sql injection. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

EXPLOIT AVAILABLE

Public exploit or PoC code exists. Modeled probability is still low, but the barrier to attack is reduced — watch closely.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 17th percentile

○ In CISA KEV ● Public exploit / PoC

Impact if exploited

5.3CVSS 4.0 · MEDIUM

  • 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-2026-77392/poc.jsonMachine-readable PoC index for this CVE (for automation).

Listed for defensive triage, patch verification, and authorized testing on systems you own. Machine-readable: /cve/CVE-2026-77392/poc.json

Affected

Vendors Sourcecodester

Products Dynamic Input Field Generator Using Html, Css, And Php

Weakness (CWE)

  • CWE-89: SQL Injection
  • CWE-74: Injection

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