CVE-2026-57149
📛 CVE Title
plone.app.portlets Vulnerable to Remote Code Execution via TALES Injection
Description
plone.app.portlets.portlets provides a Plone-specific user interface for plone.portlets, as well as a standard set of portlets that ship with Plone. Starting in version 5.0.0 and prior to versions 5.0.8, 6.0.4, and 7.0.2, the Classic portlet (plone.app.portlets.portlets.classic) used its user-supplied template/macro fields to build a TALES path expression that was then evaluated by the TAL path() helper. Because the value was interpreted as a full TALES expression, a user able to add or edit a Classic portlet could supply a crafted value that escapes simple path traversal and is evaluated as arbitrary code. This is exploitable by any authenticated user who can configure a Classic portlet - which, with the default role map, includes regular users on their personal dashboard. The result is code execution in the context of the Plone process, i.e. a privilege escalation across the trust boundary between an authenticated web user and the server-side process. The problem has been patched in `plone.app.portlets` 5.0.8, 6.0.4, and 7.0.2. Some workarounds are available. Restrict who can manage portlets: remove the `plone.app.portlets.ManageOwnPortlets` permission from untrusted roles, and limit Manage portlets to trusted administrators (usually this is already restricted to the Manager and Site Administrator roles). Where the Classic portlet is not needed, unregister it so it cannot be added. This would need to be done by editing a `portlets.xml` in your own code. One may also effectively disable showing the classic portlet by customising its template. In the Zope Management Interface go to the `portal_view_customizations` tool, locate the `classic.pt` template and click it. Click the Customize button. Remove all text and replace it with `<div>The classic portlet was disabled.</div>`. (This is not a recommended way of customizing a template, but in this case it is quite effective.)
Overview
- State
- PUBLISHED
- Assigner (CNA)
- GitHub_M
- CVSS severity
- CRITICAL
- CVSS score
- 9.9 / 10
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H- Effective score
- 9.9 / 10 CRITICAL source: CNA overview
- CWE(s)
-
CWE-95 - Reserved
- 2026-06-24
- Published
- 2026-09-22 19:02 UTC
- Last updated
- 2026-09-22 19:14 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/57xxx/CVE-2026-57149.json
- Linked Threat
- CVE-2026-57149 — plone.app.portlets Vulnerable to Remote Code Execution via TALES Injection
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-09-22 19:16:43 UTC
- NVD last modified
- 2026-09-22 20:17:03 UTC
- NVD CVSS v3.1
- 9.9 / 10 CRITICAL source: security-advisories@github.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H- Exploitability subscore
- 3.1 / 10
- Impact subscore
- 6.0 / 10
NVD / KEV / EPSS data refreshed 2026-09-23 02:47 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-84802 - Assigner
- GitHub_M
- Published
- Sep 22, 2026, 7:02:03 PM
- Updated
- Sep 22, 2026, 7:14:41 PM
- EUVD base score (CVSS 3.1)
-
9.9 / 10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EUVD-reported EPSS
- 0.0000
- Vendors
- plone
- Products
-
plone.app.portlets (6.0.0, < 6.0.4)plone.app.portlets (5.0.0, < 5.0.8)plone.app.portlets (7.0.0, < 7.0.2)
ENISA description: plone.app.portlets.portlets provides a Plone-specific user interface for plone.portlets, as well as a standard set of portlets that ship with Plone. Starting in version 5.0.0 and prior to versions 5.0.8, 6.0.4, and 7.0.2, the Classic portlet (plone.app.portlets.portlets.classic) used its user-supplied template/macro fields to build a TALES path expression that was then evaluated by the TAL path() helper. Because the value was interpreted as a full TALES expression, a user able to add or edit a Classic portlet could supply a crafted value that escapes simple path traversal and is evaluated as arbitrary code. This is exploitable by any authenticated user who can configure a Classic portlet - which, with the default role map, includes regular users on their personal dashboard. The result is code execution in the context of the Plone process, i.e. a privilege escalation across the trust boundary between an authenticated web user and the server-side process. The problem has been patched in `plone.app.portlets` 5.0.8, 6.0.4, and 7.0.2. Some workarounds are available. Restrict who can manage portlets: remove the `plone.app.portlets.ManageOwnPortlets` permission from untrusted roles, and limit Manage portlets to trusted administrators (usually this is already restricted to the Manager and Site Administrator roles). Where the Classic portlet is not needed, unregister it so it cannot be added. This would need to be done by editing a `portlets.xml` in your own code. One may also effectively disable showing the classic portlet by customising its template. In the Zope Management Interface go to the `portal_view_customizations` tool, locate the `classic.pt` template and click it. Click the Customize button. Remove all text and replace it with `<div>The classic portlet was disabled.</div>`. (This is not a recommended way of customizing a template, but in this case it is quite effective.)
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| plone | plone.app.portlets |
>= 7.0.0, < 7.0.2 (affected),
>= 6.0.0, < 6.0.4 (affected),
>= 5.0.0, < 5.0.8 (affected)
|
— |
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
NVD-tagged references (1)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://github.com/plone/plone.app.portlets/security/advisories/GHSA-rr49-f9g6-c9r5 security-advisories@github.com
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:catalog.update.microsoft.com
Welcome to the Microsoft Update Catalog site. We want your feedback! Visit our newsgroup or send us an email to provide us with your thoughts and suggestions. To get started using the site, enter in your search terms in the Search box above or visit our FAQ for search tips. |Newsgroup|Send us your feedback
2026-09-23 15:18 UTC -
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-09-23 15:18 UTC -
web:senserva.com
Every Microsoft security patch (KB) and the CVEs it fixes, with severity, CVSS, and CISA KEV status. Cross-linked to the CVE reference.
2026-09-23 15:18 UTC -
web:support.microsoft.com
This out-of-band (OOB) update for Windows 11, version 25H2 and Windows 11, version 24H2 (KB5121768) is cumulative. It includes all improvements from previous security and non-security updates, along with an additional fix . Improvements This OOB update includes the following improvement: [System Performance] This update addresses an issue affecting a limited number of devices with an Intel ...
2026-09-23 15:18 UTC -
web:support.microsoft.com
This update for Windows 11, version 25H2 and 24H2 (KB5084597) incudes security improvements. To learn more about differences between security updates, optional non-security preview updates, out-of-band (OOB) updates, and continuous innovation, see Windows monthly updates explained. For information on Windows update terminology, see the different types of Windows software updates. To view the ...
2026-09-23 15:18 UTC -
web:support.sap.com
SAP security Patch Day Bulletin This post shares the information on security notes that remediate vulnerabilities discovered in SAP products. SAP strongly recommends that the customer visits the support portal and applies patches on priority to protect their SAP landscape. On 9th of June 2026 , SAP security patch day saw the release of 15 new security notes.
2026-09-23 15:18 UTC -
web:www.oracle.com
This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.
2026-09-23 15:18 UTC -
web:www.rapid7.com
CVE-2026-57149 : plone plone.app.portlets: plone.app.portlets.portlets provides a Plone-specific user interface for plone.portlets, as well as a standard set of…. View severity, references, and remediation details from Rapid7.
2026-09-23 15:18 UTC -
web:www.tenable.com
Microsoft patched 569 CVEs in July 2026 , the largest Patch Tuesday release in its history. 56 critical CVEs patched including three zero-day vulnerabilities.
2026-09-23 15:18 UTC -
web:www.tenable.com
plone.app.portlets.portlets provides a Plone-specific user interface for plone.portlets, as well as a standard set of portlets that ship with Plone. Starting in version 5.0.0 and prior to versions 5.0.8, 6.0.4, and 7.0.2, the Classic portlet (plone.app.portlets.portlets.classic) used its user-supplied template/macro fields to build a TALES path expression that was then evaluated by the TAL ...
2026-09-23 15:18 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-57149.json.
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