CVE-2020-12415 (GCVE-0-2020-12415)
Vulnerability from cvelistv5 – Published: 2020-07-09 14:39 – Updated: 2024-08-04 11:56
VLAI
EPSS
VEX
Summary
When "%2F" was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. This could cause the appcache to be used to service requests for the top level directory. This vulnerability affects Firefox < 78.
Severity
6.5 (Medium)
CWE
- AppCache manifest poisoning due to url encoded character processing
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2… | x_refsource_MISC |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1586630 | x_refsource_MISC |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisoryx_refsource_SUSE |
| https://security.gentoo.org/glsa/202007-10 | vendor-advisoryx_refsource_GENTOO |
Impacted products
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"published": "2020-07-09T15:15:11.617",
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"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-06-26T22:34:38+00:00",
"cve": "CVE-2020-12415",
"id": "CVE-2020-12415",
"initial_release_date": "2020-07-16T00:00:00+00:00",
"product_status:known_not_affected": "7",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Mozilla: AppCache manifest poisoning due to url encoded character processing",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-12415.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-09-08T00:22:46Z",
"cve": "CVE-2020-12415",
"id": "CVE-2020-12415",
"initial_release_date": "2023-02-15T03:59:03Z",
"product_status:known_affected": "24",
"product_status:known_not_affected": "24",
"product_status:recommended": "366",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2020-12415",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-12415.json",
"version": "21"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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