Security readout for executives and security teams
Plain-English summary
This vulnerability affects Screets Live Chat Unlimited 2.8.3. An unauthenticated visitor can submit malicious script content through chat, and that content may run later inside the admin area. The main business risk is compromise of an administrator session or redirecting staff to a malicious site.
Executive priority
Treat this as a moderate-priority web application risk. Prioritize remediation for public WordPress sites where administrators routinely review chat messages, especially sites with privileged sessions or sensitive customer workflows.
Technical view
CVE-2019-25737 is a stored cross-site scripting issue in the chat input field of Live Chat Unlimited 2.8.3. The CVSS 3.1 score is 6.1, with network access, low complexity, no privileges required, and user interaction required. The source bundle maps it to CWE-79.
Likely exposure
Exposure appears limited to WordPress sites running Screets Live Chat Unlimited version 2.8.3 where the chat input is accessible to unauthenticated users. The provided sources do not identify other affected versions or platforms.
Exploitation context
The bundle includes an ExploitDB reference, indicating public exploit information exists. KEV is false, and the provided sources do not state active exploitation. Successful impact depends on stored chat content being viewed in the admin area.
Researcher notes
Evidence supports stored XSS in Live Chat Unlimited 2.8.3 only. Do not broaden affected-version claims without vendor confirmation. Public exploit reference exists, but active exploitation is not established by the supplied sources.
Mitigation direction
- Inventory WordPress sites for Live Chat Unlimited 2.8.3.
- Check Screets, CodeCanyon, and VulnCheck guidance for fixed versions or official mitigations.
- Disable or restrict the chat feature until remediation is confirmed.
- Review stored chat messages for unexpected HTML or script content.
- Limit admin exposure when reviewing chat messages from untrusted users.
Validation and detection
- Confirm installed plugin name and version against the 2.8.3 affected scope.
- Verify whether unauthenticated users can submit chat messages.
- Review admin chat views for stored user-supplied content rendering.
- Inspect chat records and logs for suspicious submissions or redirect reports.
- Track CVE and vendor pages for documented update 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-2019-25737 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
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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.
SSVC decision data
CVSS vector scores
2 official scoresWe 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:N/UI:R/S:C/C:L/I:L/A:N2.82.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.3MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-47037CVE reference, VulnCheck · exploit
- Official Product HomepageCVE reference, VulnCheck · product
- Product ReferenceCVE reference, VulnCheck · product
- VulnCheck Advisory: Live Chat Unlimited 2.8.3 Stored Cross-Site ScriptingCVE reference, VulnCheck · 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.