CVE-2023-1776 (GCVE-0-2023-1776)
Vulnerability from cvelistv5 – Published: 2023-03-31 11:29 – Updated: 2024-12-06 23:05
VLAI
EPSS
VEX
Title
Stored XSS via SVG attachment on Boards
Summary
Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-06 22:55 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
3.3.0 , ≤ 7.7.1
(semver)
Affected: 3.3.0 , ≤ 7.1.5 (semver) Affected: 3.3.0 , < 7.8.0 (semver) Unaffected: 7.8.0 Unaffected: 7.7.2 Unaffected: 7.1.6 |
guessed |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T05:57:25.242Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://mattermost.com/security-updates/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-1776",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-12-06T22:55:49.006699Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-12-06T23:05:30.076Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"lessThanOrEqual": "7.7.1",
"status": "affected",
"version": "3.3.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.5",
"status": "affected",
"version": "3.3.0",
"versionType": "semver"
},
{
"lessThan": "7.8.0",
"status": "affected",
"version": "3.3.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "7.8.0"
},
{
"status": "unaffected",
"version": "7.7.2"
},
{
"status": "unaffected",
"version": "7.1.6"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"user": "00000000-0000-4000-9000-000000000000",
"value": "Veshraj Ghimire (ghimire_veshraj)"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cdiv\u003eBoards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.\u003cbr\u003e\u003c/div\u003e"
}
],
"value": "Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.\n\n\n"
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-03-31T11:29:36.185Z",
"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
"shortName": "Mattermost"
},
"references": [
{
"url": "https://mattermost.com/security-updates/"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Update Mattermost to version v7.8.0, v7.1.6, v7.7.2, or higher.\u003cbr\u003e"
}
],
"value": "Update Mattermost to version v7.8.0, v7.1.6, v7.7.2, or higher.\n"
}
],
"source": {
"advisory": "MMSA-2023-00139",
"defect": [
"https://mattermost.atlassian.net/browse/MM-50167"
],
"discovery": "EXTERNAL"
},
"title": "Stored XSS via SVG attachment on Boards",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee",
"assignerShortName": "Mattermost",
"cveId": "CVE-2023-1776",
"datePublished": "2023-03-31T11:29:36.185Z",
"dateReserved": "2023-03-31T11:29:24.127Z",
"dateUpdated": "2024-12-06T23:05:30.076Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-1776",
"date": "2026-09-17",
"epss": "0.00447",
"percentile": "0.38057"
},
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"7.1.6\", \"matchCriteriaId\": \"68480D55-9BBC-46E3-8DE9-A2F13F2F8853\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:mattermost:mattermost_server:7.7.1:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"BB8E1831-9267-467F-A646-84052F0A3FAE\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.\\n\\n\\n\"}]",
"id": "CVE-2023-1776",
"lastModified": "2024-11-21T07:39:53.130",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"responsibledisclosure@mattermost.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N\", \"baseScore\": 7.3, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.1, \"impactScore\": 5.2}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\", \"baseScore\": 5.4, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.3, \"impactScore\": 2.7}]}",
"published": "2023-03-31T12:15:06.750",
"references": "[{\"url\": \"https://mattermost.com/security-updates/\", \"source\": \"responsibledisclosure@mattermost.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://mattermost.com/security-updates/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
"sourceIdentifier": "responsibledisclosure@mattermost.com",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"responsibledisclosure@mattermost.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-79\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-79\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2023-1776\",\"sourceIdentifier\":\"responsibledisclosure@mattermost.com\",\"published\":\"2023-03-31T12:15:06.750\",\"lastModified\":\"2026-06-17T05:28:44.020\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.\\n\\n\\n\"}],\"affected\":[{\"source\":\"responsibledisclosure@mattermost.com\",\"affectedData\":[{\"vendor\":\"Mattermost\",\"product\":\"Mattermost\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"3.3.0\",\"lessThanOrEqual\":\"7.7.1\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"3.3.0\",\"lessThanOrEqual\":\"7.1.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"3.3.0\",\"lessThan\":\"7.8.0\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"7.8.0\",\"status\":\"unaffected\"},{\"version\":\"7.7.2\",\"status\":\"unaffected\"},{\"version\":\"7.1.6\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"responsibledisclosure@mattermost.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N\",\"baseScore\":7.3,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.1,\"impactScore\":5.2},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.3,\"impactScore\":2.7}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-12-06T22:55:49.006699Z\",\"id\":\"CVE-2023-1776\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"responsibledisclosure@mattermost.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"7.1.6\",\"matchCriteriaId\":\"68480D55-9BBC-46E3-8DE9-A2F13F2F8853\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:mattermost:mattermost_server:7.7.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BB8E1831-9267-467F-A646-84052F0A3FAE\"}]}]}],\"references\":[{\"url\":\"https://mattermost.com/security-updates/\",\"source\":\"responsibledisclosure@mattermost.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://mattermost.com/security-updates/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
"redhat_vex": {
"current_release_date": "2025-05-29T00:40:05+00:00",
"cve": "CVE-2023-1776",
"id": "CVE-2023-1776",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Stored XSS via SVG attachment on Boards",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-1776.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://mattermost.com/security-updates/\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T05:57:25.242Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-1776\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-12-06T22:55:49.006699Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-12-06T22:55:50.330Z\"}}], \"cna\": {\"title\": \"Stored XSS via SVG attachment on Boards\", \"source\": {\"defect\": [\"https://mattermost.atlassian.net/browse/MM-50167\"], \"advisory\": \"MMSA-2023-00139\", \"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"user\": \"00000000-0000-4000-9000-000000000000\", \"value\": \"Veshraj Ghimire (ghimire_veshraj)\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Mattermost\", \"product\": \"Mattermost\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.3.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.7.1\"}, {\"status\": \"affected\", \"version\": \"3.3.0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"7.1.5\"}, {\"status\": \"affected\", \"version\": \"3.3.0\", \"lessThan\": \"7.8.0\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"7.8.0\"}, {\"status\": \"unaffected\", \"version\": \"7.7.2\"}, {\"status\": \"unaffected\", \"version\": \"7.1.6\"}], \"defaultStatus\": \"unaffected\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"Update Mattermost to version v7.8.0, v7.1.6, v7.7.2, or higher.\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Update Mattermost to version v7.8.0, v7.1.6, v7.7.2, or higher.\u003cbr\u003e\", \"base64\": false}]}], \"references\": [{\"url\": \"https://mattermost.com/security-updates/\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Boards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.\\n\\n\\n\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"\u003cdiv\u003eBoards in Mattermost allows an attacker to upload a malicious SVG image file as an attachment to a card and share it using a direct link to the file.\u003cbr\u003e\u003c/div\u003e\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee\", \"shortName\": \"Mattermost\", \"dateUpdated\": \"2023-03-31T11:29:36.185Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2023-1776\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-12-06T23:05:30.076Z\", \"dateReserved\": \"2023-03-31T11:29:24.127Z\", \"assignerOrgId\": \"9302f53e-dde5-4bf3-b2f2-a83f91ac0eee\", \"datePublished\": \"2023-03-31T11:29:36.185Z\", \"assignerShortName\": \"Mattermost\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
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.
Loading…
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.
Loading…
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.
Loading…