Rsform\!blogApplication · Rsjoomla
CVE-2025-27754
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 · uneditedA stored XSS vulnerability in RSBlog! component 1.11.6 - 1.14.4 for Joomla was discovered. The vulnerability allows authenticated users to inject malicious JavaScript into the plugin's resource. The injected payload is stored by the application and later executed when other users view the affected content.
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 · high confidenceStored XSS vulnerability in RSBlog! component for Joomla allows authenticated users to inject malicious JavaScript into the plugin's resource. The injected payload is stored by the application and executes when other users view the affected content, enabling session hijacking or privilege escalation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Rsform\!blogApplication
>= 1.11.6, <= 1.14.4CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
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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Locate RSBlog! component in JoomlaAccess Joomla Administrator panel, navigate to Extensions > Manage > Manage, and search for 'rsblog' or 'rsform!blog' in the extension list to identify if the component is installed.Affected if The RSBlog! component is not found in the installed extensions list, indicating the vulnerability does not apply.
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Determine installed versionIn the same Extensions > Manage > Manage view, locate the RSBlog! or Rsform!blog extension and record the version number displayed in the Version column.Affected if The installed version falls within the range of 1.11.6 through 1.14.4 inclusive.
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Verify RSBlog! plugin is enabledNavigate to Extensions > Plugins and search for 'rsblog' or 'rsform!blog' plugin types. Check if the plugin related to the blog resource is published and enabled.Affected if The RSBlog! plugin is enabled and published, making the stored XSS vulnerability potentially exploitable.
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Inspect blog content for suspicious entriesAccess the RSBlog! component content through Components > RSBlog! (or Rsform!blog) and review existing blog posts or articles for unexpected script tags, iframe elements, or event handler attributes in title, content, or custom fields.Affected if Malicious JavaScript payloads are present in stored blog content, confirming active exploitation of the stored XSS vulnerability.
A user is affected if the RSBlog! component is installed with a version between 1.11.6 and 1.14.4, the related plugin is enabled, and potentially malicious scripts are found in stored blog content.
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 dataUpdate RSBlog! component to a version beyond 1.14.4 or apply vendor patch; implement output encoding and input validation as compensating controls until patch is applied.
Fix this in Rsform\!blog
Scoped from the published advisory
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-27754 — 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-2025-27754 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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