CVE-2020-12803 (GCVE-0-2020-12803)
Vulnerability from cvelistv5 – Published: 2020-06-08 15:43 – Updated: 2024-09-16 22:25- xforms submission target on local file system allowed
| URL | Tags |
|---|---|
| https://www.libreoffice.org/about-us/security/adv… | |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisory |
| http://lists.opensuse.org/opensuse-security-annou… | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2023… | mailing-list |
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| The Document Foundation | LibreOffice |
Affected:
unspecified , < 6.4.4
(custom)
|
guessed |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T12:04:22.905Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.libreoffice.org/about-us/security/advisories/CVE-2020-12803"
},
{
"name": "FEDORA-2020-8922773bc4",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PQIBAKXD7VO5IGBD7ZMH3GGBNR5R2IOA/"
},
{
"name": "openSUSE-SU-2020:1222",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00042.html"
},
{
"name": "openSUSE-SU-2020:1261",
"tags": [
"vendor-advisory",
"x_transferred"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00058.html"
},
{
"name": "[debian-lts-announce] 20231231 [SECURITY] [DLA 3703-1] libreoffice security update",
"tags": [
"mailing-list",
"x_transferred"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00026.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "LibreOffice",
"vendor": "The Document Foundation",
"versions": [
{
"lessThan": "6.4.4",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"datePublic": "2020-06-08T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "ODF documents can contain forms to be filled out by the user. Similar to HTML forms, the contained form data can be submitted to a URI, for example, to an external web server. To create submittable forms, ODF implements the XForms W3C standard, which allows data to be submitted without the need for macros or other active scripting Prior to version 6.4.4 LibreOffice allowed forms to be submitted to any URI, including file: URIs, enabling form submissions to overwrite local files. User-interaction is required to submit the form, but to avoid the possibility of malicious documents engineered to maximize the possibility of inadvertent user submission this feature has now been limited to http[s] URIs, removing the possibility to overwrite local files. This issue affects: The Document Foundation LibreOffice versions prior to 6.4.4."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "xforms submission target on local file system allowed",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-12-31T14:06:33.068Z",
"orgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
"shortName": "Document Fdn."
},
"references": [
{
"url": "https://www.libreoffice.org/about-us/security/advisories/CVE-2020-12803"
},
{
"name": "FEDORA-2020-8922773bc4",
"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PQIBAKXD7VO5IGBD7ZMH3GGBNR5R2IOA/"
},
{
"name": "openSUSE-SU-2020:1222",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00042.html"
},
{
"name": "openSUSE-SU-2020:1261",
"tags": [
"vendor-advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00058.html"
},
{
"name": "[debian-lts-announce] 20231231 [SECURITY] [DLA 3703-1] libreoffice security update",
"tags": [
"mailing-list"
],
"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00026.html"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "XForms submissions could overwrite local files",
"x_generator": {
"engine": "Vulnogram 0.0.9"
}
}
},
"cveMetadata": {
"assignerOrgId": "4fe7d05b-1353-44cc-8b7a-1e416936dff2",
"assignerShortName": "Document Fdn.",
"cveId": "CVE-2020-12803",
"datePublished": "2020-06-08T15:43:09.400Z",
"dateReserved": "2020-05-12T00:00:00.000Z",
"dateUpdated": "2024-09-16T22:25:46.168Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2020-12803",
"date": "2026-11-14",
"epss": "0.01756",
"percentile": "0.78311"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*",
"matchCriteriaId": "884EC10F-81A5-439D-8575-019B8EF77C04",
"versionEndExcluding": "6.4.4",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"matchCriteriaId": "B620311B-34A3-48A6-82DF-6F078D7A4493",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
"matchCriteriaId": "80F0FA5D-8D3B-4C0E-81E2-87998286AF33",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "ODF documents can contain forms to be filled out by the user. Similar to HTML forms, the contained form data can be submitted to a URI, for example, to an external web server. To create submittable forms, ODF implements the XForms W3C standard, which allows data to be submitted without the need for macros or other active scripting Prior to version 6.4.4 LibreOffice allowed forms to be submitted to any URI, including file: URIs, enabling form submissions to overwrite local files. User-interaction is required to submit the form, but to avoid the possibility of malicious documents engineered to maximize the possibility of inadvertent user submission this feature has now been limited to http[s] URIs, removing the possibility to overwrite local files. This issue affects: The Document Foundation LibreOffice versions prior to 6.4.4."
},
{
"lang": "es",
"value": "Los documentos ODF pueden contener formularios para ser completados por parte del usuario. De manera similar a los formularios HTML, los datos del formulario contenido pueden ser enviados hacia un URI, por ejemplo, hacia un servidor web externo. Para crear formularios enviables, ODF implementa el est\u00e1ndar XForms W3C, que permite el env\u00edo de datos sin la necesidad de macros u otro scripting activo. LibreOffice versiones anteriores a 6.4.4 permiti\u00f3 que formularios sean enviados hacia cualquier URI, incluyendo los URI file:, permitiendo env\u00edos de formularios para sobrescribir archivos locales. Una interacci\u00f3n del usuario es requerida para enviar el formulario, pero para evitar la posibilidad de documentos maliciosos dise\u00f1ados para maximizar la posibilidad de env\u00edo involuntario del usuario, esta caracter\u00edstica ahora se ha limitado a los URI http[s], eliminando la posibilidad de sobrescribir archivos locales. Este problema afecta: Document Foundation LibreOffice versiones anteriores a 6.4.4"
}
],
"id": "CVE-2020-12803",
"lastModified": "2024-11-21T05:00:19.277",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-06-08T16:15:10.057",
"references": [
{
"source": "security@documentfoundation.org",
"tags": [
"Broken Link"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00042.html"
},
{
"source": "security@documentfoundation.org",
"tags": [
"Broken Link"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00058.html"
},
{
"source": "security@documentfoundation.org",
"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00026.html"
},
{
"source": "security@documentfoundation.org",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PQIBAKXD7VO5IGBD7ZMH3GGBNR5R2IOA/"
},
{
"source": "security@documentfoundation.org",
"tags": [
"Vendor Advisory"
],
"url": "https://www.libreoffice.org/about-us/security/advisories/CVE-2020-12803"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Broken Link"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00042.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Broken Link"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00058.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2023/12/msg00026.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PQIBAKXD7VO5IGBD7ZMH3GGBNR5R2IOA/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://www.libreoffice.org/about-us/security/advisories/CVE-2020-12803"
}
],
"sourceIdentifier": "security@documentfoundation.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Low",
"current_release_date": "2026-11-07T10:58:02+00:00",
"cve": "CVE-2020-12803",
"id": "CVE-2020-12803",
"initial_release_date": "2020-06-08T00:00:00+00:00",
"product_status:fixed": "342",
"product_status:known_affected": "316",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "libreoffice: forms allowed to be submitted to any URI could result in local file overwrite",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-12803.json",
"version": "3"
}
}
}
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
Loading timeline…
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.
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.