CVE-2026-72574: picocms Pico · Improper Neutralization of HTTP Headers for Scripting Syntax
Affects picocms PicoSource CVE Database V5
Not known to be exploited · CVSS 6.1 Medium : upgrade to 2.1.5 when convenient.
Data as of 7 Nov 2026, 23:24 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.1.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.
What to do
Upgrade picocms/Pico to 2.1.5.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| picocmsPico | Affected
| Fixed in– |
GitHubpicocms/Picopkg:github/picocms/PicoOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
If you cannot patch yet, users should consider explicitly setting the base_url configuration to a trusted value to avoid reliance on unvalidated headers.
Description
CVE-2026-72574 is a host header injection vulnerability in picocms/Pico versions prior to 2.1.5. It allows an unauthenticated remote attacker to manipulate the origin of JavaScript and CSS assets loaded by the default theme by exploiting how the base URL is constructed from unvalidated HTTP headers when base_url is unset.