GitHub_MCVE-2023-36459CVE-2023-36459
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
52.7%
Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 1.3 and prior to versions 3.5.9, 4.0.5, and 4.1.3, an attacker using carefully crafted oEmbed data can bypass the HTML sanitization performed by Mastodon and include arbitrary HTML in oEmbed preview cards. This introduces a vector for cross-site scripting (XSS) payloads that can be rendered in the user’s browser when a preview card for a malicious link is clicked through. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| joinmastodon | mastodon | * | cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:* |
CNA Affected
[
{
"vendor": "mastodon",
"product": "mastodon",
"versions": [
{
"version": ">= 1.3, < 3.5.9",
"status": "affected"
},
{
"version": ">= 4.0.0, < 4.0.5",
"status": "affected"
},
{
"version": ">= 4.1.0, < 4.1.3",
"status": "affected"
}
]
}
]References
www.openwall.com/lists/oss-security/2023/07/06/5
github.com/mastodon/mastodon/commit/6d8e0fae3e96f3cf4febe03fa7fcf5b95ff761b2
github.com/mastodon/mastodon/releases/tag/v3.5.9
github.com/mastodon/mastodon/releases/tag/v4.0.5
github.com/mastodon/mastodon/releases/tag/v4.1.3
github.com/mastodon/mastodon/security/advisories/GHSA-ccm4-vgcc-73hp
Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
AI Score
Confidence
High
EPSS
Percentile
52.7%