Security readout for executives and security teams
Plain-English summary
Phraseanet DAM Open Source 4.0.3 has a stored cross-site scripting issue in document uploads. An authenticated user can upload a document with a crafted filename or SVG content that later runs script in another user’s browser. Business risk is session theft, user redirection, or actions performed through a trusted Phraseanet session.
Executive priority
Treat as a moderate-priority application security issue. It requires authenticated access but may affect other users and sessions after upload. Prioritize remediation if Phraseanet is externally reachable or used by many contributors.
Technical view
CVE-2018-25157 is CWE-79 stored XSS affecting Phraseanet DAM Open Source <=4.0.3 and 4.0.4-dev. The CVSS v3.1 score is 6.4, with network access, low complexity, low privileges, and changed scope. The issue is triggered through crafted document upload metadata/content, specifically filenames and embedded SVG script handling.
Likely exposure
Exposure is most relevant for internet- or intranet-accessible Phraseanet deployments where non-administrative authenticated users can upload documents. Public-facing DAM portals with many contributors have higher practical risk than tightly administered internal systems.
Exploitation context
The source bundle includes an ExploitDB reference, indicating public exploit information exists. The CVE is not listed as KEV in the provided data, and no cited source states active exploitation in the wild.
Researcher notes
Evidence identifies stored XSS via document upload in Phraseanet 4.0.3, with affected versions listed as <=4.0.3 and 4.0.4-dev. The bundle does not provide a named fixed release or vendor advisory details, so remediation should be confirmed through vendor channels.
Mitigation direction
- Identify Phraseanet instances running <=4.0.3 or 4.0.4-dev.
- Check Phraseanet vendor guidance and download sources for supported fixed versions.
- Restrict document upload capability to trusted users until remediated.
- Review controls for SVG handling, filename sanitization, and content rendering.
- Monitor Phraseanet sessions and logs for suspicious uploads or unusual user redirects.
Validation and detection
- Inventory Phraseanet version and deployment exposure.
- Confirm whether authenticated users can upload documents.
- Review recent uploaded filenames and SVG files for suspicious script-like content.
- Validate in staging that uploaded document names/content are safely encoded when viewed.
- Track remediation status against vendor or advisory guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-25157 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-46935CVE reference · exploit
- Vendor HomepageCVE reference · product
- Software Download PageCVE reference · product
- VulnCheck Advisory: Phraseanet 4.0.3 Stored XSS via Document UploadCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.