Security readout for executives and security teams
Plain-English summary
CVE-2017-20252 affects the Joomla NextGen Editor extension version 2.1.0. An unauthenticated attacker could abuse a database query parameter to read sensitive database information. This matters most for public Joomla sites still running this old extension. No CISA KEV listing is provided, but a public ExploitDB entry is cited.
Executive priority
Prioritize internet-facing Joomla sites first, especially those handling customer, payment, or user data. Treat this as high urgency if NextGen Editor 2.1.0 is present. If the extension is absent, business risk from this CVE is likely low.
Technical view
The issue is SQL injection, CWE-89, in NextGen Editor 2.1.0 for Joomla. The reported vector is the plname parameter in requests to index.php with option=com_nge and view=config. The CVSS 4.0 score is 8.8, with network access, low complexity, no privileges, and no user interaction required.
Likely exposure
Exposure is likely limited to Joomla sites with NextGen Editor 2.1.0 installed and reachable by unauthenticated users. Organizations without Joomla, without this extension, or not on version 2.1.0 are not indicated as affected by the provided sources.
Exploitation context
The sources cite a public ExploitDB entry, so defenders should assume exploit details are publicly available. The bundle does not show CISA KEV status or confirmed active exploitation. The reported impact is extraction of sensitive database information through arbitrary SQL execution.
Researcher notes
Evidence supports unauthenticated SQL injection in a specific Joomla extension version. The provided sources do not name an official patch, fixed version, or vendor advisory. Validate presence before escalation. Public exploit availability raises operational concern, but active exploitation is not established in the supplied evidence.
Mitigation direction
- Inventory Joomla sites for the NextGen Editor extension and version 2.1.0.
- Check vendor or Joomla extension guidance for an update or replacement path.
- Disable or remove the extension if it is not required.
- Restrict public access to affected Joomla administration or extension endpoints where feasible.
- Review database permissions used by the Joomla application for least privilege.
Validation and detection
- Confirm whether NextGen Editor is installed on each Joomla instance.
- Verify whether the installed version is exactly 2.1.0.
- Review web logs for requests containing option=com_nge and view=config.
- Look for suspicious plname parameter activity in historical logs.
- Monitor for unusual database reads from the Joomla application account.
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-2017-20252 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.
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.
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-43365CVE reference, VulnCheck · exploit
- Product ReferenceCVE reference, VulnCheck · product
- VulnCheck Advisory: Joomla NextGen Editor 2.1.0 SQL Injection via plname ParameterCVE 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.