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Jawn theme EUVDEUVD-2026-65300

| CVE-2026-78477 CRITICAL
Incorrect Privilege Assignment (CWE-266)
2026-08-25 Wordfence GHSA-24r8-w5p9-r798
9.8
CVSS 3.1 · Vendor: Wordfence
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Severity by source

Vendor (Wordfence) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Description states unauthenticated remote privilege escalation to administrator, so AV:N/AC:L/PR:N/UI:N; admin takeover yields full C:H/I:H/A:H with no scope change.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Wordfence).

CVSS VectorVendor: Wordfence

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Aug 25, 2026 - 06:05 vuln.today
CVE Published
Aug 25, 2026 - 05:31 cve.org
CRITICAL 9.8

DescriptionCVE.org

The Jawn theme for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.4.2. This makes it possible for unauthenticated attackers to elevate their privileges to that of an administrator.

AnalysisAI

Privilege escalation in the Jawn WordPress theme (by MvpThemes) affects all versions through 1.4.2, allowing an unauthenticated remote attacker to promote themselves to a full administrator account. The flaw was disclosed by Wordfence and independently catalogued by Patchstack, and its CVSS 9.8 rating reflects unauthenticated, network-reachable takeover of the WordPress site. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Fingerprint Jawn theme on target site
Delivery
Send crafted unauthenticated request to role-assignment function
Exploit
Elevate controlled account to administrator
Execution
Install malicious plugin or webshell
Impact
Full site takeover and data compromise

Vulnerability AssessmentAI

Exploitation The only stated prerequisite is that the target WordPress site runs the Jawn theme at version 1.4.2 or earlier and that the vulnerable functionality is network-reachable. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment All decision signals point toward high priority on paper: the CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N) describes a network-reachable, low-complexity, unauthenticated attack with high confidentiality, integrity, and availability impact, yielding a 9.8 base score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker identifies a WordPress site running the Jawn theme (fingerprintable via theme assets in the page source) and sends a crafted unauthenticated request to the theme's vulnerable role-assignment functionality, granting an attacker-controlled or newly registered account administrator privileges. With admin access the attacker installs a malicious plugin or webshell to achieve full site and server-adjacent control. …
Remediation No vendor-released patched version is identified in the available data - the advisory range covers all releases through 1.4.2 without naming a fixed build, so administrators should consult the Wordfence and Patchstack advisories (linked above) for an updated release and upgrade to any version published after 1.4.2 once confirmed by the vendor. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all WordPress installations using the Jawn theme and immediately disable or remove it to prevent exploitation. …

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EUVD-2026-65300 vulnerability details – vuln.today

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