Security readout for executives and security teams
Plain-English summary
A WordPress contact form plugin can store malicious script submitted by anyone and run it later when an administrator views form submissions. This can expose admin-session data or alter actions in the admin browser context. The issue affects Form Maker by 10Web versions up to and including 1.15.35.
Executive priority
Treat as a near-term remediation item for internet-facing WordPress sites. The weakness can put administrator sessions and site integrity at risk, but available sources do not confirm active exploitation.
Technical view
CVE-2026-1058 is stored XSS in Form Maker by 10Web via hidden field values. Insufficient output escaping in the admin submissions list, combined with html_entity_decode() on user-supplied data, can reconstitute encoded HTML/JavaScript. CVSS is 7.1, network exploitable, low complexity, unauthenticated, requiring administrator interaction.
Likely exposure
Public WordPress sites using Form Maker by 10Web at version 1.15.35 or earlier are the likely exposure. Risk is highest where unauthenticated visitors can submit forms and administrators regularly review submissions in WordPress admin.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires an unauthenticated form submission and later administrator viewing of the submissions list, so it is practical but not fully automatic.
Researcher notes
Primary evidence describes CWE-79 stored XSS in admin/views/Submissions_fm.php, with a referenced WordPress Trac changeset. The CVE affected metadata appears inconsistent, but the description clearly states versions through 1.15.35 are vulnerable.
Mitigation direction
- Update Form Maker by 10Web to the latest available version beyond 1.15.35 if provided.
- If no update is available, check 10Web or WordPress plugin guidance immediately.
- Restrict administrator access and reduce unnecessary review of untrusted submissions until remediated.
- Consider disabling affected forms temporarily on high-risk sites.
Validation and detection
- Inventory WordPress sites for Form Maker by 10Web installations.
- Confirm whether installed versions are 1.15.35 or earlier.
- Review vendor advisory and WordPress plugin changelog for the fixing release.
- Check recent submissions for unusual encoded markup in hidden fields.
- Verify the admin submissions view escapes hidden field output after updating.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2026-1058 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:N/UI:R/S:C/C:L/I:L/A:L
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:N/UI:R/S:C/C:L/I:L/A:L2.83.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/e0ec0027-2792-4069-b413-8fdd951f5fe7?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/form-maker/tags/1.15.34/admin/views/Submissions_fm.php#L759CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3447011%40form-maker%2Ftrunk&old=3440395%40form-maker%2Ftrunk&sfp_email=&sfph_mail=CVE 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.