Security readout for executives and security teams
Plain-English summary
CVE-2021-36532 is a high-severity race condition reported in portfolioCMS 1.0. If reachable, the upload handler may let a remote unauthenticated attacker run arbitrary code. The source data names one version but provides limited product metadata and no confirmed patch information.
Executive priority
Prioritize internet-facing portfolioCMS 1.0 instances because the impact is arbitrary code execution. Treat unsupported or unverifiable deployments as replacement candidates, especially where upload paths are reachable externally.
Technical view
The CVE describes CWE-362 in portfolioCMS 1.0 affecting localhost/admin/uploads.php through the fileExt parameter. CVSS 3.1 is 8.1 with network access, no privileges, no user interaction, high impact, and high attack complexity.
Likely exposure
Likely exposure is limited to organizations running portfolioCMS 1.0 with the admin upload route reachable from untrusted networks. The CVE record has no CPEs or normalized vendor/product entries, so asset matching may require manual confirmation.
Exploitation context
The bundle does not show CISA KEV listing or active exploitation. Public disclosure exists through a GitHub issue reference. The CVSS vector marks attack complexity high, indicating exploitation likely depends on timing conditions.
Researcher notes
Evidence is sparse: one GitHub issue reference, no CPEs, and no patch data in the bundle. Validation should focus on confirming real portfolioCMS 1.0 exposure and reachability, not assuming broader product impact.
Mitigation direction
- Check portfolioCMS maintainer guidance for a fixed release or official mitigation.
- Remove, replace, or isolate portfolioCMS 1.0 if no supported fix exists.
- Restrict untrusted network access to admin upload paths.
- Monitor web-accessible upload locations for unexpected executable content.
- Review server logs for suspicious access to /admin/uploads.php.
Validation and detection
- Inventory systems for portfolioCMS 1.0 deployments.
- Confirm whether /admin/uploads.php is reachable from untrusted networks.
- Review logs for requests involving the fileExt parameter.
- Inspect upload and web root directories for unexpected executable files.
- Verify any vendor patch or configuration mitigation is actually applied.
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-362: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCVE-2021-36532 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
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/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:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/excellentoldtv/portfolioCMS-issues/issues/1CVE 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.
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.