Security readout for executives and security teams
Plain-English summary
YetiShare versions 3.5.2 through 4.5.3 may send session cookies without the Secure flag. If users access the site over cleartext HTTP, those cookies can travel without encryption, creating a session theft risk. Business impact depends heavily on whether the service is reachable over HTTP and how sessions are protected.
Executive priority
Treat this as a targeted web session exposure issue, not a broad platform emergency. Prioritize review if YetiShare is public-facing or handles sensitive files, because session theft could lead to unauthorized account access.
Technical view
CVE-2019-19739 describes MFScripts YetiShare 3.5.2 through 4.5.3 failing to mark session cookies as Secure. Browsers may then send those cookies over HTTP, exposing session identifiers on cleartext paths. The provided sources include no CVSS vector, CWE mapping, vendor fix details, or confirmed exploitation evidence.
Likely exposure
Exposure is likely limited to organizations running MFScripts YetiShare 3.5.2 through 4.5.3. Risk is higher when the application is internet-facing, accepts HTTP, redirects after setting cookies, or serves users on shared or untrusted networks.
Exploitation context
The source bundle does not show KEV listing or other cited evidence of active exploitation. Practical abuse would depend on a session cookie being transmitted over cleartext HTTP and observed by an attacker with network visibility.
Researcher notes
The record is sparse: no CVSS, CWE, structured CPE, or patch statement is included. The strongest claim supported by the bundle is missing Secure flag on session cookies for YetiShare 3.5.2 through 4.5.3. Avoid expanding scope beyond that evidence.
Mitigation direction
- Confirm whether the deployed YetiShare version is within 3.5.2 through 4.5.3.
- Check vendor guidance or release notes for a supported fix or upgrade path.
- Configure session cookies to use the Secure flag where supported.
- Force HTTPS for all application traffic before authentication occurs.
- Consider HSTS after confirming the site is fully HTTPS-ready.
Validation and detection
- Inspect application Set-Cookie headers and verify session cookies include Secure.
- Test HTTP access paths and confirm authenticated cookies are never sent over HTTP.
- Review redirects to ensure cookies are not issued before HTTPS enforcement.
- Inventory all YetiShare deployments and map versions to the affected range.
- Check proxy and TLS termination settings that may influence cookie handling.
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-2019-19739 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.