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Vulnerabilities

Vulnerability · CVE-2019-25714

IBM collaborative_lifecycle_management Unrestricted Upload of File with Dangerous Type

Published Apr 21, 2026 · catalog updated Jun 17, 2026 · A8-V5 Collaborative Management Software Seeyon Internet Software

Patch now

CVE-2019-25714 is in the CISA known-exploited catalog. Confirm A8-V5 Collaborative Management Software Seeyon Internet Software against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Critical9.3
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.65%
Remediation
Remediation guidance
Affected products
vendor A8-V5 Collaborative Management Software Seeyon Internet Software

Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads. Attackers can write JSP webshells to the web root and execute them through the web server to achieve arbitrary OS command execution with web server privileges. Exploitation evidence was first observed by the Shadowserver Foundation on 2021-03-26 (UTC).

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor A8-V5 Collaborative Management Software Seeyon Internet Softwareversion unspecified

How to fix CVE-2019-25714

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2019-25714 is in the CISA known-exploited catalog. Confirm A8-V5 Collaborative Management Software Seeyon Internet Software against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-434: Unrestricted Upload of File with Dangerous Type. EPSS 0.65%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 21, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  2. Apr 21, 2026 · NIST NVD

    Detected

    Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads. Attackers can write JSP webshells to the web root and execute them through the web server to achieve arbitrary OS comman

  3. Jun 17, 2026 · NIST NVD

    Updated

    Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads. Attackers can write JSP webshells to the web root and execute them through the web server to achieve arbitrary OS comman

Sources

  • CVE.orgVulnerability recordCVE-2019-25714

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2019-25714

    30-day exploitation probability 0.7%

    first.org
  • NIST NVDVulnerability recordCVE-2019-25714

    Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2019-25714

    Seeyon OA A8 contains an unauthenticated arbitrary file write vulnerability in the /seeyon/htmlofficeservlet endpoint that allows remote attackers to write arbitrary files to the web application root by sending specially crafted POST requests with custom base64-encoded payloads.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.