CVE-2025-49029
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedImproper Control of Generation of Code ('Code Injection') vulnerability in bitto.kazi Custom Login And Signup Widget custom-login-and-signup-widget allows Code Injection.This issue affects Custom Login And Signup Widget: from n/a through <= 1.0.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA code injection vulnerability exists in the bitto.kazi Custom Login and Signup Widget plugin (versions <= 1.0). The plugin improperly handles user-supplied input in a way that allows injection of malicious code, likely through form fields in the login/signup widget. Given the CVSS score of 9.1, this is a critical flaw that could allow unauthenticated attackers to execute arbitrary code on the WordPress site.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check if the vulnerable plugin is installedNavigate to WordPress admin > Plugins > Installed Plugins, or inspect the /wp-content/plugins/ directory for a folder named 'bitto-kazi-custom-login-signup-widget' or similar variant containing 'bitto' and 'kazi'Affected if The plugin folder exists in the WordPress plugins directory
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Determine the installed plugin versionIn WordPress admin, go to Plugins > Installed Plugins, find 'Custom Login and Signup Widget' by bitto.kazi, and check the version number displayed below the plugin nameAffected if The version is 1.0 or lower (including any sub-version like 1.0.1, 0.9, etc.)
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Verify the widget is active on the siteCheck WordPress Appearance > Widgets or any page builder/plugin where the Custom Login and Signup Widget has been added to a sidebar, footer, or pageAffected if The widget is actively published and accessible to visitors on the site frontend
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Confirm the login/signup forms are exposed without authenticationVisit the pages where the widget is published and attempt to access the login/signup forms as an unauthenticated userAffected if The forms are publicly accessible without requiring login
If the plugin is installed, version 1.0 or lower, and the widget is active on the site, the environment is affected by this code injection vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUntil a patched version is released, disable or remove the Custom Login and Signup Widget plugin. If continued use is required, implement web application firewall (WAF) rules to block malicious injection attempts, and carefully audit any alternative plugins for secure input handling.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-49029 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-49029 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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