CVE-2026-71204: changedetection.io - Omitted Checkbox in /settings Save Silently Disables API Key Enforcement
Deferred
Published 05-08-2026Last modified 10-08-2026
Vulnerability summary
CVE-2026-71204 is a medium (CVSS 6.3) Improper Access Control vulnerability in dgtlmoon changedetection.io. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.7% of scored vulnerabilities.
CVSS score
6.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.32%
0%100%
Low · +0.07 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 05-08-2026PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
changedetection.io's /settings save handler builds an update dict from form.data['application'] and blind-merges it into the stored application settings via .update.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 6.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:LSources2 sources · 6.2–6.3
- NVDNIST6.2MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:LDiffers
EPSS trend
Probability
0.32%
Chance of exploitation in the next 30 days
Percentile
24%
Versus all other CVEs
30-day change
Increase +0.07 pp
From 0.25% on 22-09-2026
22-09-202622-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Dgtlmoon1 product
- changedetection.io0.55.7
1 vendor · 1 product
References
1 links- github.com/dgtlmoon/changedetection.ioThird Party Advisory