Security readout for executives and security teams
Plain-English summary
This issue weakens session protection in YetiShare by allowing browser-side scripts to read session cookies. On its own, it does not prove account compromise; it becomes dangerous if an attacker can run script in a victim’s browser, such as through XSS. The bundle provides no CVSS score, patch version, or evidence of active exploitation.
Executive priority
Treat this as a targeted hygiene and exposure-reduction issue, not a standalone emergency based on the bundle. Escalate priority if affected YetiShare instances are internet-facing, handle sensitive files, or have any unresolved XSS risk.
Technical view
CVE-2019-19736 reports that MFScripts YetiShare 3.5.2 through 4.5.3 fails to set HttpOnly on session cookies. Without HttpOnly, JavaScript can access the cookie, increasing the impact of any script-injection flaw. The record does not list CWE, CVSS, CPEs, or a named vendor fix.
Likely exposure
Organizations running MFScripts YetiShare versions 3.5.2 through 4.5.3 are potentially exposed. The structured affected field is n/a, so confirm product and version directly from deployed instances and vendor records.
Exploitation context
The bundle supports only a conditional risk: cookie theft may be possible if an attacker can execute script in a user’s browser. KEV is false, and the provided sources do not claim active exploitation.
Researcher notes
Evidence is sparse: no CVSS, CWE, CPE, patch advisory, or exploit confirmation is included. The primary security impact is increased consequence of script execution, because session cookies lack HttpOnly protection.
Mitigation direction
- Confirm whether any YetiShare deployment is within versions 3.5.2 through 4.5.3.
- Check MFScripts or YetiShare vendor guidance for fixed versions or configuration advice.
- Set session cookies with HttpOnly where supported and vendor-approved.
- Prioritize remediation if the application also has XSS findings or untrusted content features.
- Review session lifetime and reauthentication controls for sensitive administrative actions.
Validation and detection
- Inspect application session cookie attributes in a browser or proxy test environment.
- Verify whether the session cookie includes the HttpOnly attribute.
- Inventory deployed YetiShare versions against 3.5.2 through 4.5.3.
- Review recent web application testing results for XSS or script injection findings.
- Confirm any vendor update changes cookie behavior before production rollout.
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-2019-19736 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://medium.com/%40jra8908/yetishare-3-5-2-4-5-3-multiple-vulnerabilities-2d01d0cd7459CVE 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.