Medium

Server-Side Request Forgery (SSRF) in MouseTooltipTranslator

Type: advisorySources: OSV

The MouseTooltipTranslator Chrome extension allows mouseover translation of any language at once. The MouseTooltipTranslator browser extension is vulnerable to SSRF attacks. The pdf.mjs script uses the URL parameter from the current URL as the file to download and display to the extension user. Because pdf.mjs is imported in viewer.html and viewer.html is accessible to all URLs, an attacker can force the user’s browser to make a request to any arbitrary URL. After discussion with maintainer, patching this issue would require disabling a major feature of the extension in exchange for a low severity vulnerability. Decision to not patch issue.

Products: Not specified
Affected versions: Not specified
Fixed versions: Not specified
CVEs: CVE-2025-25303
Confirmed fixed CVEs: Not specified
Updated in this feed: 4 Nov 2026, 03:13 UTC · Revision 1

Source evidence

Server-Side Request Forgery (SSRF) in MouseTooltipTranslator

core-osv · Original source

Published 3 Mar 2025, 16:47 UTC

osv:CVE-2025-25303

Complete source record

{
  "id": "f720edcd8fd604396486d51681346ccf1da58d99c2a1db24cdc3e6dd817a8e25",
  "url": "https://osv.dev/vulnerability/CVE-2025-25303",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Server-Side Request Forgery (SSRF) in MouseTooltipTranslator",
    "summary": "The MouseTooltipTranslator Chrome extension allows mouseover translation of any language at once. The MouseTooltipTranslator browser extension is vulnerable to SSRF attacks. The pdf.mjs script uses the URL parameter from the current URL as the file to download and display to the extension user. Because pdf.mjs is imported in viewer.html and viewer.html is accessible to all URLs, an attacker can force the user’s browser to make a request to any arbitrary URL. After discussion with maintainer, patching this issue would require disabling a major feature of the extension in exchange for a low severity vulnerability. Decision to not patch issue.",
    "evidence": "osv:CVE-2025-25303",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-25303",
      "aliases": [
        "CVE-2025-25303"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ttop32/mousetooltiptranslator",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "ddd040686f08454c8e22f78d8e348deebb6ec483"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.1.127"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.1.127",
            "0.1.126",
            "0.1.125",
            "0.1.124",
            "0.1.123",
            "0.1.122",
            "0.1.121",
            "0.1.120",
            "0.1.119",
            "0.1.118",
            "0.1.117",
            "0.1.116",
            "0.1.115",
            "0.1.114",
            "0.1.113",
            "0.1.112",
            "0.1.111",
            "0.1.110",
            "0.1.109",
            "0.1.108",
            "0.1.107",
            "0.1.106",
            "0.1.105",
            "0.1.104",
            "0.1.103",
            "0.1.102",
            "0.1.101",
            "0.1.100",
            "0.1.99",
            "0.1.98",
            "0.1.97",
            "0.1.96",
            "0.1.95",
            "0.1.94",
            "0.1.93",
            "0.1.92",
            "0.1.91",
            "0.1.90",
            "0.1.89",
            "0.1.88",
            "0.1.87",
            "0.1.86",
            "0.1.85",
            "0.1.84",
            "0.1.83",
            "0.1.82",
            "0.1.81",
            "0.1.80",
            "0.1.79",
            "0.1.78",
            "0.1.77",
            "0.1.76",
            "0.1.75",
            "0.1.74",
            "0.1.73",
            "0.1.72",
            "0.1.71",
            "0.1.70",
            "0.1.63",
            "0.1.36",
            "0.1.32",
            "0.1.31",
            "0.1.30",
            "0.1.16",
            "0.1.15"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-25303.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:32.747800424Z",
      "provider": "osv",
      "references": [
        "https://github.com/ttop32/MouseTooltipTranslator/blob/0.1.127/public/manifest.json#L23",
        "https://github.com/ttop32/MouseTooltipTranslator/blob/0.1.127/public/pdfjs/build/pdf.mjs#L13932",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25303.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-25303",
        "https://securitylab.github.com/advisories/GHSL-2024-018_MouseTooltipTranslator/"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/25xxx/CVE-2025-25303.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-25303",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499954,
  "published_at": "2025-03-03T16:47:10.222+00:00"
}