Security readout for executives and security teams
Plain-English summary
Zechat 1.5 has an unauthenticated SQL injection in the v parameter. A remote attacker could use blind, timing-based responses to infer and extract database information. The sources identify a public exploit reference, but do not show KEV listing or confirmed active exploitation.
Executive priority
Treat this as high priority for exposed Zechat 1.5 systems because exploitation requires no login and targets database confidentiality. Priority drops materially if the product is not deployed or is not reachable by untrusted users.
Technical view
CVE-2018-25339 is CWE-89 in Bylancer Zechat 1.5. The vulnerability is network-reachable, low complexity, requires no privileges or user interaction, and has high confidentiality impact with low integrity impact under CVSS 4.0 score 8.8.
Likely exposure
Exposure is limited to organizations running Bylancer Zechat version 1.5, especially if it is internet-facing. The bundle provides no CPEs, deployment prevalence, or fixed-version information.
Exploitation context
ExploitDB is cited as an exploit reference, supporting public exploit availability. KEV is false, and the provided sources do not establish active exploitation in the wild.
Researcher notes
Evidence supports a blind SQL injection in the v parameter for Zechat 1.5. The bundle does not provide a vendor patch, fixed version, CPE mapping, or proof of active exploitation. Avoid assuming broader Bylancer products are affected.
Mitigation direction
- Inventory systems for Bylancer Zechat 1.5 deployments.
- Check Bylancer and advisory sources for upgrade or patch guidance.
- Remove or restrict public access until vendor guidance is confirmed.
- Review database permissions used by Zechat for least privilege.
- Monitor application and database logs for suspicious v parameter activity.
Validation and detection
- Confirm whether any hosted application is Zechat 1.5.
- Identify public routes that accept the v parameter.
- Review logs for abnormal delays or repeated v parameter requests.
- Assess what database data the Zechat application account can access.
- Track CVE and VulnCheck updates for fixed-version details.
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-2018-25339 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
- High
- CVSS
- 8.8 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA: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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N——VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N3.94.2VulnCheckVulnerability scoring details
Base CVSS 4.0 score
8.8HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Base CVSS 3.1 score
8.2HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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-44685CVE reference, VulnCheck · exploit
- Official Product HomepageCVE reference, VulnCheck · product
- VulnCheck Advisory: Zechat 1.5 SQL Injection via v parameter (time-based blind)CVE 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 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.