Security readout for executives and security teams
Plain-English summary
SEO Panel before 4.9.0 has an authenticated blind SQL injection in archive.php. A logged-in attacker could tamper with the order_col parameter to read database information and possibly make limited changes. This is high priority where SEO Panel is internet-accessible or used by many low-privilege users.
Executive priority
Prioritize remediation this cycle for any exposed SEO Panel deployment. The issue can threaten database confidentiality and has public exploit documentation, but requires authentication and has no confirmed KEV-backed active exploitation in the provided sources.
Technical view
CVE-2021-47872 is CWE-89 in SEO Panel < 4.9.0, reported against 4.8.0. The vulnerable archive.php order_col parameter can alter SQL query structure. CVSS v3.1 is 7.1: network exploitable, low complexity, low privileges required, no user interaction, high confidentiality impact, low integrity impact.
Likely exposure
Exposure is limited to environments running SEO Panel before 4.9.0, especially 4.8.0, with authenticated user access. Internet-facing deployments have higher practical risk because attackers only need valid credentials, not administrator access, based on the provided CVSS privileges rating.
Exploitation context
Public exploit material exists on Exploit-DB and VulnCheck references the issue. The source bundle does not show CISA KEV listing or confirmed active exploitation. Treat this as exploitable, but do not assume active in-the-wild exploitation without additional evidence.
Researcher notes
Focus validation on version and reachability, not exploit reproduction. The key artifact is archive.php handling of order_col before 4.9.0. Evidence supports authenticated blind SQL injection and a vendor release tagged 4.9.0; details on exact patch diff are not included in the bundle.
Mitigation direction
- Upgrade SEO Panel to version 4.9.0 or later.
- Review the 4.9.0 release notes and vendor guidance.
- Restrict access to SEO Panel until upgraded.
- Review accounts and remove unnecessary authenticated users.
- Monitor database and application logs for suspicious archive.php activity.
Validation and detection
- Inventory SEO Panel instances and record installed versions.
- Confirm whether any instance is below 4.9.0.
- Verify authenticated access paths to archive.php.
- Check logs for unusual requests involving order_col.
- Confirm upgrade completion in application version information.
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-2021-47872 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
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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.
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:L/UI:N/S:U/C:H/I:L/A:N2.84.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-49666CVE reference · exploit
- Official SEO Panel HomepageCVE reference · product
- SEO Panel 4.9.0 ReleaseCVE reference · product, patch
- GitHub Issue #209CVE reference · issue-tracking
- VulnCheck Advisory: SEO Panel < 4.9.0 - 'order_col' Blind SQL InjectionCVE reference · 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.