Security readout for executives and security teams
Plain-English summary
CVE-2018-1000842 is a cross-site scripting issue in FatFreeCRM. Malicious content could run JavaScript in another user’s browser when they view an affected page, potentially exposing CRM session data or enabling actions as that user.
Executive priority
Treat as a near-term remediation item for any internet-accessible or multi-user FatFreeCRM deployment. It is not KEV-listed, but CRM data sensitivity makes user-browser compromise relevant.
Technical view
The CVE record describes XSS in FatFreeCRM commit 6d60bc8ed010c4eda05d6645c64849f415f68d65. Affected ranges include <=0.14.1, 0.15.0-0.15.1, 0.16.0-0.16.3, 0.17.0-0.17.2, and 0.18.0. Fixes are listed in 0.14.2, 0.15.2, 0.16.4, 0.17.3, and 0.18.1.
Likely exposure
Exposure is likely limited to organizations running the named FatFreeCRM versions, especially where untrusted or lower-privileged users can create content viewed by other CRM users.
Exploitation context
The source bundle says exploitation occurs when content containing JavaScript is viewed by an end user. No KEV listing or cited source indicates active exploitation.
Researcher notes
The public record lacks CVSS, CWE, and detailed affected CPE data. Analysis is therefore grounded mainly in the CVE description and linked FatFreeCRM references.
Mitigation direction
- Upgrade FatFreeCRM to the fixed release for your maintained version line.
- Prioritize 0.18.1 if running 0.18.0.
- Review vendor advisory, issue, and commit details before applying local workarounds.
- Restrict untrusted content creation until affected instances are upgraded.
Validation and detection
- Inventory FatFreeCRM deployments and compare versions to the vulnerable ranges.
- Confirm upgraded deployments report 0.14.2, 0.15.2, 0.16.4, 0.17.3, 0.18.1, or later.
- Review CRM content change history for suspicious script-like entries.
- Confirm pages rendering user content use the vendor-fixed code path.
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.
CVE-2018-1000842 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/asteinhauser/fat_free_crm/issues/1CVE reference · x_refsource_MISC
- https://github.com/asteinhauser/fat_free_crm/commit/306f940b26ccf3f406665f07bece1229a7a5dcfaCVE reference · x_refsource_MISC
- https://github.com/fatfreecrm/fat_free_crm/wiki/XSS-Vulnerability-%282018-10-27%29CVE reference · x_refsource_MISC
- https://groups.google.com/forum/#%21topic/fat-free-crm-users/TxsdZXSe7JcCVE reference · x_refsource_MISC
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.