Security readout for executives and security teams
Plain-English summary
CVE-2020-7356 is a critical unauthenticated SQL injection in CAYIN xPost. A vulnerable public-facing instance could let an attacker tamper with database queries and, per the advisory description, execute system commands. This is business-critical for any organization using affected xPost versions.
Executive priority
Treat this as urgent if CAYIN xPost is present. The vulnerability is unauthenticated, network reachable, and rated CVSS 10.0. Prioritize exposure reduction and vendor-guided remediation before routine maintenance work.
Technical view
The issue affects wayfinder_meeting_input.jsp where the GET parameter wayfinder_seqid is not properly sanitized. Sources identify affected CAYIN xPost versions 2.5.18103, 2.0, and 1.0. CVSS 3.1 is 10.0 with network attack vector, no privileges, no user interaction, and scope change.
Likely exposure
Exposure is most likely where CAYIN xPost is deployed on an internet-facing or broadly reachable internal web server, especially versions 2.5.18103, 2.0, or 1.0. The provided sources do not identify other affected products.
Exploitation context
The CVE is not listed as KEV in the provided bundle, so active exploitation is not established here. A Rapid7 Metasploit Framework pull request is referenced, indicating public exploit-development interest, but that is not proof of real-world exploitation.
Researcher notes
Evidence supports CWE-89 SQL injection in wayfinder_meeting_input.jsp via wayfinder_seqid, with possible system command execution stated in the CVE description. Patch details are not present in the provided sources, so remediation should be verified against vendor guidance.
Mitigation direction
- Identify all CAYIN xPost deployments and confirm product versions.
- Check CAYIN guidance for fixed versions or vendor-supported mitigations.
- Remove internet exposure for affected systems until remediation is confirmed.
- Restrict access to trusted networks if the service must remain online.
- Monitor web and database logs for suspicious wayfinder_seqid activity.
Validation and detection
- Confirm whether any instance runs xPost 2.5.18103, 2.0, or 1.0.
- Review asset inventories for CAYIN xPost installations.
- Check whether wayfinder_meeting_input.jsp is reachable from untrusted networks.
- Review logs for abnormal requests targeting wayfinder_seqid.
- Document remediation status and remaining exposure for each instance.
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-89: Database access and collection lookup
Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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 lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-7356 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
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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:N/UI:N/S:C/C:H/I:H/A:N3.95.8Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5571.phpCVE reference · x_refsource_MISC
- https://github.com/rapid7/metasploit-framework/pull/13607CVE 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.
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.