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Vulnerabilities

Vulnerability · CVE-2021-25082

sygnoos popup_builder Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Published Dec 19, 2022 · catalog updated Dec 19, 2022 · sygnoos popup_builder Improper Limitation

Patch now

CVE-2021-25082 is in the CISA known-exploited catalog. Confirm sygnoos popup_builder Improper Limitation against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (sygnoos popup_builder Improper Limitation).
  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
5.23%
Remediation
Remediation guidance
Affected products
vendor sygnoos popup_builder

The Popup Builder WordPress plugin before 4.0.7 does not validate and sanitise the sgpb_type parameter before using it in a require statement, leading to a Local File Inclusion issue. Furthermore, since the beginning of the string can be controlled, the issue can lead to RCE vulnerability via wrappers such as PHAR

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 sygnoos popup_builderversion unspecified

How to fix CVE-2021-25082

What to do

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

Should you patch?

CVE-2021-25082 is in the CISA known-exploited catalog. Confirm sygnoos popup_builder Improper Limitation 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?

No weakness class is stored. EPSS 5.23%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

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. Dec 19, 2022 · VulnCheck KEV

    Detected

    The Popup Builder WordPress plugin before 4.0.7 does not validate and sanitise the sgpb_type parameter before using it in a require statement, leading to a Local File Inclusion issue. Furthermore, since the beginning of the string can be controlled, the issue can lead to RCE vulnerability via wrappers such as PHAR

  2. Dec 19, 2022 · CISA KEV

    Known exploited

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

Sources

  • CVE.orgVulnerability recordCVE-2021-25082

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-25082

    30-day exploitation probability 5.2%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2021-25082

    The Popup Builder WordPress plugin before 4.0.7 does not validate and sanitise the sgpb_type parameter before using it in a require statement, leading to a Local File Inclusion issue. Furthermore, since the beginning of the string can be controlled, the issue can lead to RCE vuln

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.