DEBIAN-CVE-2026-64638
WordPress is vulnerable to a pre-auth reflected XSS vulnerability on the login screen. Via a specially crafted malicious third-party website hosted by an attacker, it is possible for this to be escalated to an RCE vulnerability with conditions outside of the attackers control. This requires successful social engineering of and explicit interaction by the target victim. This issue affects all versions of WordPress. Version 7.0.3 has been released, containing a fix for the vulnerability, and as a courtesy to users on older branches the fix has been backported to all branches back to 4.7. Discovered and responsibly disclosed by [the team at pwn.ai](https://pwn.ai/).
DEBIAN-CVE-2026-64638
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-64638
wordpress
Source reference: /affected/0/package/name
- Affected versions
- 6.1.1+dfsg1-1
Source reference:
/affected/0/versions6.1.6+dfsg1-0+deb12u1Source reference:
/affected/0/versions6.1.9+dfsg1-0+deb12u1Source reference:
/affected/0/versions6.2+dfsg1-1Source reference:
/affected/0/versions6.2.1+dfsg1-1Source reference:
/affected/0/versions6.2.2+dfsg1-1Source reference:
/affected/0/versions6.3+dfsg1-1Source reference:
/affected/0/versions6.3.1+dfsg1-1Source reference:
/affected/0/versions6.3.2+dfsg1-1Source reference:
/affected/0/versions6.4.1+dfsg1-1Source reference:
/affected/0/versions6.4.1+dfsg1-1.1Source reference:
/affected/0/versions6.4.2+dfsg1-1Source reference:
/affected/0/versions6.4.3+dfsg1-1Source reference:
/affected/0/versions6.5+dfsg1-1Source reference:
/affected/0/versions6.5.2+dfsg1-1Source reference:
/affected/0/versions6.5.3+dfsg1-1Source reference:
/affected/0/versions6.5.5+dfsg1-1Source reference:
/affected/0/versions6.6.1+dfsg1-1Source reference:
/affected/0/versions6.7.2+dfsg1-1Source reference:
/affected/0/versions6.7.2+dfsg1-1.1Source reference:
/affected/0/versions6.8.1+dfsg1-1Source reference:
/affected/0/versions6.8.3+dfsg1-1Source reference:
/affected/0/versions6.9+dfsg1-1Source reference:
/affected/0/versions6.9.4+dfsg1-1Source reference:
/affected/0/versions7.0+dfsg1-1Source reference:
/affected/0/versions7.0.2+dfsg1-1Source reference:
/affected/0/versions7.0.3+dfsg1-1Source reference:
/affected/0/versions7.1+dfsg1-1Source reference:
/affected/0/versions7.1.1+dfsg1-1Source reference:
/affected/0/versions7.1.2+dfsg1-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
wordpress
Source reference: /affected/1/package/name
- Affected versions
- 6.8.1+dfsg1-1
Source reference:
/affected/1/versions6.8.3+dfsg1-0+deb13u1Source reference:
/affected/1/versions6.8.3+dfsg1-1Source reference:
/affected/1/versions6.8.6+dfsg1-0+deb13u1Source reference:
/affected/1/versions - Fixed versions
- 6.8.7+dfsg1-0+deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
wordpress
Source reference: /affected/2/package/name
- Affected versions
- 6.8.1+dfsg1-1
Source reference:
/affected/2/versions6.8.3+dfsg1-1Source reference:
/affected/2/versions6.9+dfsg1-1Source reference:
/affected/2/versions6.9.4+dfsg1-1Source reference:
/affected/2/versions7.0+dfsg1-1Source reference:
/affected/2/versions7.0.2+dfsg1-1Source reference:
/affected/2/versions - Fixed versions
- 7.0.3+dfsg1-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "wordpress",
"purl": "pkg:deb/debian/wordpress?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"6.1.1+dfsg1-1",
"6.1.6+dfsg1-0+deb12u1",
"6.1.9+dfsg1-0+deb12u1",
"6.2+dfsg1-1",
"6.2.1+dfsg1-1",
"6.2.2+dfsg1-1",
"6.3+dfsg1-1",
"6.3.1+dfsg1-1",
"6.3.2+dfsg1-1",
"6.4.1+dfsg1-1",
"6.4.1+dfsg1-1.1",
"6.4.2+dfsg1-1",
"6.4.3+dfsg1-1",
"6.5+dfsg1-1",
"6.5.2+dfsg1-1",
"6.5.3+dfsg1-1",
"6.5.5+dfsg1-1",
"6.6.1+dfsg1-1",
"6.7.2+dfsg1-1",
"6.7.2+dfsg1-1.1",
"6.8.1+dfsg1-1",
"6.8.3+dfsg1-1",
"6.9+dfsg1-1",
"6.9.4+dfsg1-1",
"7.0+dfsg1-1",
"7.0.2+dfsg1-1",
"7.0.3+dfsg1-1",
"7.1+dfsg1-1",
"7.1.1+dfsg1-1",
"7.1.2+dfsg1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64638.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "6.8.7+dfsg1-0+deb13u1"
}
]
}
],
"package": {
"name": "wordpress",
"purl": "pkg:deb/debian/wordpress?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"6.8.1+dfsg1-1",
"6.8.3+dfsg1-0+deb13u1",
"6.8.3+dfsg1-1",
"6.8.6+dfsg1-0+deb13u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64638.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.3+dfsg1-1"
}
]
}
],
"package": {
"name": "wordpress",
"purl": "pkg:deb/debian/wordpress?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"6.8.1+dfsg1-1",
"6.8.3+dfsg1-1",
"6.9+dfsg1-1",
"6.9.4+dfsg1-1",
"7.0+dfsg1-1",
"7.0.2+dfsg1-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-64638.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58440 · Revision 1
- Added to Heist Feed
- Publisher date