CVE-2026-78191 (GCVE-0-2026-78191)
Vulnerability from cvelistv5
Published
2026-10-31 14:34
Modified
2026-10-31 14:34
Severity ?
CWE
  • CWE-777 - Regular Expression without Anchors
Summary
WebDyne versions from 2.031 before 3.022 for Perl execute files with .psp anywhere in the name as Perl pages. WebDyne decides whether to run a requested file as a page by matching its name against WEBDYNE_PSP_EXT_RE, which has no end anchor. An application that accepts uploads by checking only the final extension lets a remote attacker upload a file such as report.psp.pdf and run its embedded Perl by requesting it.
Impacted products
Vendor Product Version
Version: 2.031   < 3.022
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "WebDyne"
          ],
          "packageName": "WebDyne",
          "packageURL": "pkg:cpan/WebDyne",
          "programFiles": [
            "lib/WebDyne/Constant.pm",
            "lib/WebDyne/Request/PAGI.pm",
            "lib/WebDyne/Request/PSGI.pm"
          ],
          "repo": "https://github.com/aspeer/WebDyne",
          "versions": [
            {
              "lessThan": "3.022",
              "status": "affected",
              "version": "2.031",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "WebDyne versions from 2.031 before 3.022 for Perl execute files with .psp anywhere in the name as Perl pages.\n\nWebDyne decides whether to run a requested file as a page by matching its name against WEBDYNE_PSP_EXT_RE, which has no end anchor.\n\nAn application that accepts uploads by checking only the final extension lets a remote attacker upload a file such as report.psp.pdf and run its embedded Perl by requesting it."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-777",
              "description": "CWE-777 Regular Expression without Anchors",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-31T14:34:30.167Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/ASPEER/WebDyne-3.022/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to WebDyne 3.022 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "WebDyne versions from 2.031 before 3.022 for Perl execute files with .psp anywhere in the name as Perl pages",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-78191",
    "datePublished": "2026-10-31T14:34:30.167Z",
    "dateReserved": "2026-08-23T18:38:50.604Z",
    "dateUpdated": "2026-10-31T14:34:30.167Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…