CVE-2017-20059
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 vulnerability, which was classified as problematic, has been found in Elefant CMS 1.3.12-RC. Affected by this issue is some unknown functionality of the component Title Handler. The manipulation with the input </title><img src=no onerror=alert(1)> leads to basic cross site scripting (Persistent). The attack may be launched remotely. Upgrading to version 1.3.13 is able to address this issue. It is recommended to upgrade the affected component.
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 confidenceA persistent cross-site scripting (XSS) vulnerability exists in the Title Handler component of Elefant CMS version 1.3.12-RC. Remote attackers can inject malicious JavaScript via crafted title input using payloads like `</title><img src=no onerror=alert(1)>`, which executes when users view the affected page.
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= 1.3.12CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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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Identify Elefant CMS installationLocate Elefant CMS on the server by checking for its characteristic installation directories, configuration files, or web application fingerprintsAffected if Elefant CMS is present on the server
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Determine installed versionFind and read the version identifier within the Elefant CMS installation (typically in a version file, header, or configuration)Affected if Installed version equals 1.3.12 exactly
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Locate Title Handler componentIdentify the Title Handler component within the Elefant CMS file structureAffected if Title Handler component exists and is accessible in the installation
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Check for stored malicious titlesInspect any stored title data or content managed by the Title Handler for suspicious patterns like HTML break tags followed by script or event handlers (for example, img tags with onerror attributes)Affected if Stored title content contains unsanitized HTML/JS payloads such as </title><img src=no onerror=alert(1)>
A user is affected if Elefant CMS version 1.3.12 is installed and the Title Handler component is in use, as the persistent XSS payload would be stored and executed when titles are rendered.
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.
dbcve · scopedUpgrade Elefant CMS to version 1.3.13 or later to patch the persistent XSS vulnerability in the Title Handler component.
1.3.13
- 1. Create a complete backup of the Elefant CMS installation including all files and the database
- 2. Download Elefant CMS version 1.3.13 from the official Elefant CMS distribution source
- 3. Extract the new version files to a temporary location
- 4. Replace the existing installation files with the new version 1.3.13 files, preserving configuration and user data
- 5. Run any database migration scripts if included in the 1.3.13 release
- 6. Verify the upgrade was successful by logging into the admin interface
- 7. Confirm the XSS vulnerability is resolved by testing that the </title><img src=no onerror=alert(1)> payload is no longer executed
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA2.0 h
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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-2017-20059 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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- Version or environment caveats, and links to real fixes
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