Security readout for executives and security teams
Plain-English summary
CVE-2026-1988 affects the WordPress plugin Flexi Product Slider and Grid for WooCommerce through version 1.0.5. A logged-in user with Contributor-level access or higher may abuse a shortcode setting to include server files. The issue can impact confidentiality, integrity, and availability if attacker-controlled PHP is included.
Executive priority
Treat as a high-priority WordPress plugin issue on WooCommerce sites with multiple content authors. Prioritize inventory, access review, and vendor update checks. Urgency is higher where Contributor accounts are broadly assigned or poorly governed.
Technical view
The flexipsg_carousel shortcode uses the theme attribute in a file path without sufficient sanitization or validation. The CVE describes directory traversal leading to local file inclusion and possible PHP execution. Wordfence rates it CVSS 7.5 High with low privileges required, high attack complexity, and no user interaction.
Likely exposure
Exposure is limited to WordPress sites running Flexi Product Slider and Grid for WooCommerce up to and including 1.0.5, especially where Contributor or higher accounts can create posts containing shortcodes.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Exploitation requires authenticated Contributor-level access or higher and the ability to create posts with shortcodes. The CVSS vector marks attack complexity as high.
Researcher notes
The key sink is the theme shortcode attribute being concatenated into an include path in class-flexipsg-shortcode.php. Public references point to the affected code in version 1.0.5 and trunk. No source in the bundle identifies a patched version or active exploitation.
Mitigation direction
- Inventory WordPress sites for the affected plugin and version.
- Check vendor and WordPress plugin guidance for a fixed release.
- Update promptly if a fixed version is available.
- Disable or remove the plugin if not business-critical.
- Restrict Contributor-level access and shortcode publishing permissions where possible.
Validation and detection
- Confirm whether the plugin is installed and at version 1.0.5 or earlier.
- Review posts for unexpected flexipsg_carousel shortcode use.
- Review plugin code or vendor release notes for theme parameter sanitization changes.
- Check web and WordPress logs for suspicious shortcode activity.
- Verify Contributor and higher accounts are expected and actively managed.
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-98: 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 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-2026-1988 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
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:L/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:L/UI:N/S:U/C:H/I:H/A:H1.65.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/ffdd5446-5835-4976-b764-9b5c75251438?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/flexi-product-slider-grid/trunk/includes/class-flexipsg-shortcode.php#L82CVE reference
- https://plugins.trac.wordpress.org/browser/flexi-product-slider-grid/tags/1.0.5/includes/class-flexipsg-shortcode.php#L82CVE reference
- https://cwe.mitre.org/data/definitions/98.htmlCVE reference
- https://cwe.mitre.org/data/definitions/22.htmlCVE 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.
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')
Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.