Ortto WordPress plugin missing authentication on config updates
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · High · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
The Ortto plugin for WordPress before 1.0.25 does not authenticate configuration update requests and relies only on a secret exposed in public HTML (CWE-306). An unauthenticated remote attacker can overwrite the plugin's configuration to serve arbitrary scripts.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
The Ortto plugin for WordPress before 1.0.25 did not authenticate configuration update requests, relying only on a secret exposed in public HTML. An unauthenticated threat actor could overwrite the plugin's configuration to serve arbitrary scripts.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update the Ortto plugin for WordPress to version 1.0.25 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA ortto (canva) Fixed in 1.0.25
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
canva ortto 1.0.25
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-82268 Sensitive WooCommerce product data exposed by Ortto plugin for WordPressPriority LOW 30
- TI-2026-82267 Stored cross-site scripting in Ortto plugin for WordPressPriority LOW 21
Timeline
- 2026-10-29 Threatist record created from CVE-2026-113387
- 2026-10-29 CISA SSVC decision points changed
- 2026-10-29 Alias added: GHSA-jqqj-mjjm-8jrv
References
More Canva vulnerabilities
- TI-2026-58447 Improper verification of communication channel in Canva CVSS 3.1CRITICAL 9.6
- TI-2026-58453 The Canva Android App before 2.376.0 did not restrict the headers returned to an external… CVSS 3.1HIGH 8.8
- TI-2025-40808 Type confusion in Canva Affinity CVSS 3.1HIGH 7.8
- TI-2025-39740 Out-of-bounds write in Canva Affinity CVSS 3.1HIGH 7.8
- TI-2026-56261 Stack-based buffer overflow in Canva Affinity CVSS 3.1HIGH 7.7
- TI-2026-61753 The Canva Mobile App for HarmonyOS before v1.15.1 did not restrict the headers returned… CVSS 3.1HIGH 7.1
Sources
- CVE-2026-113387 · CVE Program
- CVE-2026-113387 · NVD
- FIRST EPSS
- GHSA-jqqj-mjjm-8jrv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences