CVE-2026-105154: CSRF (CVSS 6.1)

Description

Cross-Site Request Forgery (CSRF) in the Planet feed aggregator administration of Apache Roller 4.0 through 6.1.6 allows an unauthenticated attacker to make the Roller server fetch a URL the attacker chooses, including internal addresses, by inducing a logged-in global administrator to open a crafted web page. The action that adds a Planet subscription can be triggered cross-site; in recent releases it accepts GET requests, which Roller's CSRF token check does not cover. The action fetches the supplied URL and saves the subscription, and any fetched content that parses as a feed is then published without authentication in the aggregated Planet feed. The Planet aggregator is enabled by default. Users are recommended to upgrade to Apache Roller 6.1.7 or later, which requires POST requests with a valid CSRF token for Planet administration changes and turns the Planet aggregator off by default.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0013

Probability of exploitation

0.03%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-352 Cross-Site Request Forgery

References

Other References

https://github.com/apache/roller/pull/200 https://lists.apache.org/thread/kj131jvv6y30o6q89shw6f4g4s4q5hw2

Frequently Asked Questions

What is CVE-2026-105154? +

Cross-Site Request Forgery (CSRF) in the Planet feed aggregator administration of Apache Roller 4.0 through 6.1.6 allows an unauthenticated attacker to make the Roller server fetch a URL the attacker chooses, including internal addresses, by inducing a logged-in global administrator to open a crafted web page. The action that adds a Planet subscription can be triggered cross-site; in recent releases it accepts GET requests, which Roller's CSRF token check does not cover. The action fetches the supplied URL and saves the subscription, and any fetched content that parses as a feed is then published without authentication in the aggregated Planet feed. The Planet aggregator is enabled by default. Users are recommended to upgrade to Apache Roller 6.1.7 or later, which requires POST requests with a valid CSRF token for Planet administration changes and turns the Planet aggregator off by default. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2026-105154? +

CVE-2026-105154 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0013, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-105154? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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