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PatchSiren cyber security CVE debrief

CVE-2026-116113 GouGuOA CVE debrief

A security flaw has been discovered in GouGuOA up to 6.1.2. The impacted element is the function chunkUpload of the file app/disk/controller/Api.php. The manipulation of the argument file_extension results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Vendor
GouGuOA
Product
GouGuOA
CVSS
LOW 2.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-26
Original CVE updated
2026-11-02
Advisory published
2026-10-26
Advisory updated
2026-11-02

Who should care

Defenders responsible for GouGuOA deployments should assess exposure to remote attacks and prioritize remediation efforts. Security teams should monitor for suspicious activity and implement compensating controls.

Why it matters

The CVE-2026-116113 vulnerability in GouGuOA allows for unrestricted file uploads, which can be exploited remotely. Defenders should prioritize verifying the presence of affected versions, restricting file uploads, and monitoring for suspicious activity.

  • Verify and restrict file uploads to prevent potential attacks
  • Monitor for suspicious activity to detect potential exploitation
  • Implement compensating controls to limit the impact of a potential breach

Technical summary

The vulnerability is located in the chunkUpload function of the Api.php file in GouGuOA up to version 6.1.2. The manipulation of the file_extension argument allows for unrestricted file uploads, which can be exploited remotely. Defenders should prioritize verifying the presence of affected versions, restricting file uploads, and monitoring for suspicious activity. The vulnerability allows for unrestricted file uploads, which can be exploited remotely, and defenders should assess exposure to remote attacks and prioritize remediation efforts.

Defensive priority

Defenders should prioritize verifying the presence of GouGuOA version 6.1.2 or earlier and assess exposure to remote attacks. Remediation efforts should focus on restricting file uploads and monitoring for suspicious activity.

Recommended defensive actions

  • Verify GouGuOA version and restrict file uploads
  • Monitor for suspicious activity and implement compensating controls
  • Review and update incident response plans
  • Implement additional logging and monitoring for file upload activity
  • Conduct a thorough review of system configurations and user permissions
  • Restrict access to sensitive areas of the system
  • Review and update vulnerability management processes

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. The exploit has been released publicly, but there is no information on known victims or attacks. Defenders should verify the presence of affected GouGuOA versions, assess exposure to remote attacks, and prioritize remediation efforts. The vulnerability allows for unrestricted file uploads, which can be exploited remotely.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-116113 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-116113

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-116113 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-116113

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.