PowerPress episode URLs give Contributors an SSRF primitive
PowerPress Podcasting before 11.17.1 lets a Contributor submit Powerpress[$FeedSlug][pci_chapters_url] in the podcast episode metabox. Save validation mistakenly checks a different chapterURL value and stores the unvalidated chapters URL. chapters_tab() later assigns that stored value to chapters_req_url and calls file_get_contents(), enabling server-side requests to internal services. The reachable schemes and ports, redirect and DNS behavior, and response-exfiltration depth are not disclosed.
- Component
- PowerPress Podcasting plugin by Blubrry
- Plugin slug
powerpress- Affected
- < 11.17.1
- Safe version
11.17.1- Published
- Aug 12, 2026
This CVE was published Aug 12, 2026 and is one of 22 known issues for this plugin.
Update, patch or deactivate.
Update to 11.17.1 or later. Review Contributor-controlled episode URLs and outbound requests, and rotate credentials if internal services may have been reached.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The PowerPress Podcasting plugin by Blubrry WordPress plugin before 11.17.1 does not validate one of its Podcast Episode URL settings before performing a server-side request with it, allowing users with a role as low as Contributor to perform Server-Side Request Forgery attacks that can target internal services.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N