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4 vulnerabilities found for plone.app.portlets by plone
CVE-2026-57149 (GCVE-0-2026-57149)
Vulnerability from nvd – Published: 2026-09-22 19:02 – Updated: 2026-09-22 19:14
VLAI
EPSS
VEX
Title
plone.app.portlets Vulnerable to Remote Code Execution via TALES Injection
Summary
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.)
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 19:13 UTC
CWE
- CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/plone/plone.app.portlets/secur… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| plone | plone.app.portlets |
Affected:
>= 7.0.0, < 7.0.2
Affected: >= 6.0.0, < 6.0.4 Affected: >= 5.0.0, < 5.0.8 |
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CVE-2026-55248 (GCVE-0-2026-55248)
Vulnerability from nvd – Published: 2026-08-28 18:40 – Updated: 2026-08-28 20:35
VLAI
EPSS
VEX
Title
plone.app.portlets: Denial of service via RSS feed portlet
Summary
plone.app.portlets provides portlets and a Plone-specific user interface for plone.portlets. Prior to 5.0.8, 6.0.4, and 7.0.2, a member who can add an RSS portlet can set its feed URL to a very large response, causing src/plone/app/portlets/portlets/rss.py to download and retain excessive data in memory and deny service. The same RSS URL handling accepts internal hosts, IP addresses, single-word domains, and explicit ports, allowing server-side requests that can probe internal network services and open ports. A malicious feed item can also supply a JavaScript URL that is retained as the item link and can execute script when used by a victim. The affected logic includes _rss_feed_url_validator, _normal_url_validator, RSSFeed._retrieveFeed, RSSFeed._buildItemDict, and the FEED_DATA in-memory cache. This issue is fixed in versions 5.0.8, 6.0.4, and 7.0.2.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 20:35 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/plone/plone.app.portlets/secur… | x_refsource_CONFIRM |
| https://github.com/plone/plone.app.portlets/commi… | x_refsource_MISC |
| https://github.com/plone/plone.app.portlets/commi… | x_refsource_MISC |
| https://github.com/plone/plone.app.portlets/commi… | x_refsource_MISC |
| https://github.com/plone/plone.app.portlets/commi… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| plone | plone.app.portlets |
Affected:
< 5.0.8
Affected: >= 6.0.0, < 6.0.4 Affected: >= 7.0.0, < 7.0.2 |
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CVE-2026-57149 (GCVE-0-2026-57149)
Vulnerability from cvelistv5 – Published: 2026-09-22 19:02 – Updated: 2026-09-22 19:14
VLAI
EPSS
VEX
Title
plone.app.portlets Vulnerable to Remote Code Execution via TALES Injection
Summary
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.)
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-22 19:13 UTC
CWE
- CWE-95 - Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/plone/plone.app.portlets/secur… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| plone | plone.app.portlets |
Affected:
>= 7.0.0, < 7.0.2
Affected: >= 6.0.0, < 6.0.4 Affected: >= 5.0.0, < 5.0.8 |
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CVE-2026-55248 (GCVE-0-2026-55248)
Vulnerability from cvelistv5 – Published: 2026-08-28 18:40 – Updated: 2026-08-28 20:35
VLAI
EPSS
VEX
Title
plone.app.portlets: Denial of service via RSS feed portlet
Summary
plone.app.portlets provides portlets and a Plone-specific user interface for plone.portlets. Prior to 5.0.8, 6.0.4, and 7.0.2, a member who can add an RSS portlet can set its feed URL to a very large response, causing src/plone/app/portlets/portlets/rss.py to download and retain excessive data in memory and deny service. The same RSS URL handling accepts internal hosts, IP addresses, single-word domains, and explicit ports, allowing server-side requests that can probe internal network services and open ports. A malicious feed item can also supply a JavaScript URL that is retained as the item link and can execute script when used by a victim. The affected logic includes _rss_feed_url_validator, _normal_url_validator, RSSFeed._retrieveFeed, RSSFeed._buildItemDict, and the FEED_DATA in-memory cache. This issue is fixed in versions 5.0.8, 6.0.4, and 7.0.2.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-28 20:35 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/plone/plone.app.portlets/secur… | x_refsource_CONFIRM |
| https://github.com/plone/plone.app.portlets/commi… | x_refsource_MISC |
| https://github.com/plone/plone.app.portlets/commi… | x_refsource_MISC |
| https://github.com/plone/plone.app.portlets/commi… | x_refsource_MISC |
| https://github.com/plone/plone.app.portlets/commi… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| plone | plone.app.portlets |
Affected:
< 5.0.8
Affected: >= 6.0.0, < 6.0.4 Affected: >= 7.0.0, < 7.0.2 |
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"id": "CVE-2026-55248",
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"Exploitation": "none"
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"Automatable": "no"
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"timestamp": "2026-08-28T20:35:12.237421Z",
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"value": "plone.app.portlets provides portlets and a Plone-specific user interface for plone.portlets. Prior to 5.0.8, 6.0.4, and 7.0.2, a member who can add an RSS portlet can set its feed URL to a very large response, causing src/plone/app/portlets/portlets/rss.py to download and retain excessive data in memory and deny service. The same RSS URL handling accepts internal hosts, IP addresses, single-word domains, and explicit ports, allowing server-side requests that can probe internal network services and open ports. A malicious feed item can also supply a JavaScript URL that is retained as the item link and can execute script when used by a victim. The affected logic includes _rss_feed_url_validator, _normal_url_validator, RSSFeed._retrieveFeed, RSSFeed._buildItemDict, and the FEED_DATA in-memory cache. This issue is fixed in versions 5.0.8, 6.0.4, and 7.0.2."
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"baseScore": 9.1,
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"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
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"scope": "CHANGED",
"userInteraction": "NONE",
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"discovery": "UNKNOWN"
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"dateReserved": "2026-06-16T16:44:00.624Z",
"dateUpdated": "2026-08-28T20:35:21.851Z",
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