webshellseo8/CVE-2026-1555-POC

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PoC files

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GitHub
Analysisdeepseek-v4-pro:cloud ·

Technical assessment

The artifact is a README file describing a scanner script for CVE-2026-1555. It provides a command-line usage example that reads a list of targets and saves confirmed vulnerable hosts to a file, indicating a scanning and validation operation rather than a direct exploit.

Backdoor review

Backdoor review undetermined

The supplied evidence consists solely of a README.md file describing a PoC for CVE-2026-1555. The README mentions a Python script (CVE-2026-48908.py) but the script itself is not included in the evidence. Without the actual executable code, it is impossible to determine whether the PoC contains backdoor behavior. The README's description of the exploit target (SP Pagebuilder for Joomla) contradicts the CVE description (WebStack theme for WordPress), which is a material inconsistency but does not, by itself, constitute evidence of a backdoor against the operator. No executable behavior can be reviewed.

ClassificationScanner
Model confidence90%
AuthenticationNot required
LanguagesPython
Target softwareSP PagebuilderJoomla
Attack typesRemote Code Execution
Evidence & reasoningClassification basis · observed behavior · safety review
Technical evidence

Classification basis and observed behavior

Classification basis

The README describes a script that takes a list of targets and outputs 'confirmed shells' to a file, which is characteristic of a vulnerability scanner that validates exposure. The script itself is not provided, but the described behavior is scanning, not direct exploitation.

README.md:22-25

Requirements

  • A list of target URLs or IPs in a file named targets.txtREADME.md:22

Observed behavior

  • Executes a Python script that reads targets from a file and saves confirmed vulnerable hosts to webshell.txtREADME.md:22-25
Safety-review evidence

Behaviors behind the backdoor verdict

Observables

Target Mismatch
README describes exploit for 'SP Pagebuilder extension for Joomla < 6.6.12' while CVE-2026-1555 is described as affecting 'WebStack theme for WordPress'The README title and overview reference a different product and platform than the associated CVE record, indicating a potential misrepresentation or error in the PoC's documentation.README.md:1README.md:15
Missing Executable
CVE-2026-48908.pyThe README references a Python script as the PoC, but this file is not included in the evidence packet, preventing any analysis of its behavior.README.md:22
Review boundaries

What the analysis did not establish

  • Only the README.md file is provided; the actual Python script (CVE-2026-48908.py) is not included, so the exact scanning logic cannot be verified.
  • The README title references CVE-2026-1555 but the usage example references a different CVE (CVE-2026-48908), creating ambiguity about the target vulnerability.
  • The evidence packet contains only the README.md file. The referenced Python script (CVE-2026-48908.py) and any other source files are not included, making a complete review impossible.
Model interpretation

This review is limited to the supplied PoC code and context. It does not assert that the code works or is safe to execute.

Linked vulnerabilities

1