Vulnerability-Lookup

(CVE-2022-31739)

Vulnerability from cleanstart – Published: 2026-10-30 19:15 – Updated: 2024-10-29 16:55 – Source website

Summary

Details

CVE-2022-31739 affects multiple packages. When downloading files on Windows, the % character was not escaped, which could have lead to a download incorrectly being saved to attacker-influenced paths that used variables such as %HOMEPATH% or %APPDATA%. See references for individual vulnerability details.

Severity

8.8 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2022-31739	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2022-31739	WEB

JSON

To clipboard

{
  "affected": [
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        "ecosystem": "CleanStart",
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        "purl": "pkg:apk/cleanstart/firefox?arch=x86_64"
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  ],
  "credits": [],
  "database_specific": {},
  "details": "CVE-2022-31739 affects multiple packages. When downloading files on Windows, the % character was not escaped, which could have lead to a download incorrectly being saved to attacker-influenced paths that used variables such as %HOMEPATH% or %APPDATA%. See references for individual vulnerability details.",
  "id": "CLEANSTART-2024-GR06833",
  "modified": "2024-10-29T16:55:32Z",
  "published": "2026-10-30T19:15:34.771991Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2024/CLEANSTART-2024-GR06833.json"
    },
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      "type": "WEB",
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    },
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      "type": "WEB",
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    }
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  "schema_version": "1.7.3",
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  "summary": "When downloading files on Windows, the % character was not escaped, which could have lead to a download incorrectly being saved to attacker-influenced paths that used variables such as %HOMEPATH% o...",
  "upstream": [
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}

CVE-2022-31739 (GCVE-0-2022-31739)

Vulnerability from cvelistv5 – Published: 2022-12-22 00:00 – Updated: 2025-04-16 13:52

Summary

When downloading files on Windows, the % character was not escaped, which could have lead to a download incorrectly being saved to attacker-influenced paths that used variables such as %HOMEPATH% or %APPDATA%.<br>*This bug only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-16 13:52 UTC

CWE

Attacker-influenced path traversal when saving downloaded files
CWE-73 - External Control of File Name or Path

Assigner

mozilla CNA under the mitre root

CNA scorecard E 38/100 over 683 records in the last 180 days details

References

4 references

URL	Tags
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://www.mozilla.org/security/advisories/mfsa2…
https://bugzilla.mozilla.org/show_bug.cgi?id=1765049

Impacted products

3 products

Vendor	Product	Version
Mozilla	Thunderbird	Affected: unspecified , < 91.10 (custom)
Mozilla	Firefox	Affected: unspecified , < 101 (custom)
Mozilla	Firefox ESR	Affected: unspecified , < 91.10 (custom)

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T07:26:01.117Z",
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        "metrics": [
          {
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              "attackVector": "NETWORK",
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              "baseScore": 8.8,
              "baseSeverity": "HIGH",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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