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CVE-2025-40678VulnerabilityPublished

CVE-2025-40678: Summar Software Portal del Empleado · Unrestricted File Upload

Affects Summar Software Portal del EmpleadoSource CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Summar Software Portal del EmpleadoAffected
  • =3.98.0
Fixed in–

AI-suggested

1. Immediate mitigation should include implementing strict server-side validation of uploaded files, restricting allowed file types to only those necessary for business operations (e.g., PDFs, images) and blocking executable or script files. 2. Employ content inspection techniques such as MIME type verification and file signature checks rather than relying solely on file extensions. 3. Configure the web server and application to store uploaded files outside the web root or in directories that do not allow execution of uploaded content. 4. Apply access controls and sandboxing to uploaded files to prevent execution or access by unauthorized users. 5. Monitor logs for unusual upload activity or attempts to upload disallowed file types. 6. If possible, implement multi-factor authentication and least privilege principles to limit the ability of low-privilege users to upload files. 7. Engage with Summar Software for official patches or updates addressing this vulnerability and apply them as soon as they become available. 8. Conduct regular security assessments and penetration testing focusing on file upload functionalities to detect similar issues proactively.

Description

Unrestricted upload vulnerability for dangerous file types on Summar Software´s Portal del Empleado. This vulnerability allows an attacker to upload a dangerous file type by sending a POST request using the parameter “cctl00$ContentPlaceHolder1$fuAdjunto” in “/MemberPages/ntf_absentismo.aspx”.

References

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