Security readout for executives and security teams
Plain-English summary
WebErpMesv2 before version 1.19 lets authenticated users bypass file upload checks and upload executable files. In affected deployments, this can lead to remote code execution. The issue matters most where WebErpMesv2 is reachable by many users or exposed over a network.
Executive priority
Prioritize remediation for internet-facing or broadly accessible WebErpMesv2 systems. Although the CVSS score is medium and authentication is required, the potential outcome is remote code execution, which can enable operational disruption or unauthorized system changes.
Technical view
CVE-2026-22789 is a file upload validation bypass in multiple WebErpMesv2 controllers before 1.19. Authenticated attackers can upload arbitrary files, including PHP scripts, potentially causing RCE. It is described as similar to CVE-2025-52130 but in different code paths. CVSS 3.1 is 5.4: AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
Likely exposure
Organizations running SMEWebify WebErpMesv2 versions earlier than 1.19 are affected. Exposure is higher when the application is network-accessible and user accounts are broadly available. Public sources do not list affected CPEs or deployment-specific configurations.
Exploitation context
Exploitation requires authenticated access, low attack complexity, network reachability, and no user interaction. The sources do not state active exploitation, and the CVE is not marked in KEV. No public source in the bundle confirms weaponized exploitation.
Researcher notes
The key research angle is incomplete coverage of a prior fix: this issue is described as identical in nature to CVE-2025-52130 but present in different controllers. Public sources identify the fixed version and commit but do not provide evidence of exploitation in the wild.
Mitigation direction
- Upgrade WebErpMesv2 to version 1.19 or later.
- Review SMEWebify’s GitHub advisory and linked commit for vendor-specific remediation details.
- Restrict WebErpMesv2 access to trusted users and networks where possible.
- Audit user accounts with upload permissions and remove unnecessary access.
Validation and detection
- Inventory WebErpMesv2 deployments and identify versions below 1.19.
- Confirm whether exposed instances require authentication for upload-capable functions.
- Review application logs for unusual uploads by authenticated users.
- Verify the vendor fix is applied in the running application code.
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 lookupCWE-616: 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 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-2026-22789 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
- Medium
- CVSS
- 5.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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:L/I:L/A:N2.82.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/SMEWebify/WebErpMesv2/security/advisories/GHSA-64rv-f829-x6m4CVE reference · x_refsource_CONFIRM
- https://github.com/SMEWebify/WebErpMesv2/commit/c9e7f4a85aeb774a0ea4b61ad57a51b941166b69CVE reference · x_refsource_MISC
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.
Incomplete Identification of Uploaded File Variables (PHP)
Incomplete Identification of Uploaded File Variables (PHP) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.