Security readout for executives and security teams
Plain-English summary
Codoforum v4.9 contains a high-impact upload flaw in its Add Category function. A sufficiently privileged attacker could upload a crafted file and potentially run code on the server, threatening confidentiality, integrity, and availability of the forum host.
Executive priority
Treat this as a high-priority exposure only if Codoforum v4.9 is present. The high privilege requirement reduces broad internet risk, but successful abuse could compromise the server. Prioritize asset confirmation first, then remediation guidance from the maintainer.
Technical view
The CVE describes CWE-434: unrestricted upload of a file with dangerous type. CVSS 3.1 is 7.2, with network access, low attack complexity, high privileges required, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure appears limited to environments running Codoforum v4.9 where high-privilege users can access the Add Category function. The source bundle does not provide CPEs, vendor metadata, deployment prevalence, or a confirmed fixed version.
Exploitation context
The bundle does not indicate CISA KEV listing or confirmed active exploitation. A public gist is referenced, but the provided data only supports that the vulnerability is publicly documented, not that it is being exploited in the wild.
Researcher notes
Evidence is thin: the CVE names Codoforum v4.9 and Add Category but lists affected vendor/product as n/a and provides no patch details. Avoid assuming broader version impact. Validation should focus on version confirmation, privilege boundaries, upload controls, and signs of prior misuse.
Mitigation direction
- Identify any Codoforum v4.9 deployments.
- Check Codoforum vendor or maintainer guidance for fixed versions or workarounds.
- Restrict category-management access to trusted administrators only.
- Review upload handling and server execution settings around category assets.
- Monitor forum hosts for unexpected uploaded files or process activity.
Validation and detection
- Confirm the deployed Codoforum version from asset records or application metadata.
- Verify who can access the Add Category function.
- Review logs for unusual category changes or upload activity.
- Inspect upload directories for unexpected executable content.
- Confirm vendor guidance has been reviewed and tracked.
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-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-22539 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
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://gist.github.com/s4fv4n/320f536a684650c6948433de8d53713cCVE reference
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.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.