Auth bypass in Backclick
CVE-2022-44005
An issue was discovered in BACKCLICK Professional 5.9.63. Due to the use of consecutive IDs in verification links, the newsletter sign-up functionality is vulnerable to the enumeration of subscribers' e-mail addresses. Furthermore, it is possible to subscribe and verify other persons' e-mail addresses to newsletters without their consent.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (49.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000
Affected products
- Backclick — versions 5.9.63
Weakness classification (CWE)
References
- www.syss.de/pentest-blog/vielfaeltige-schwachstellen-in-backclick-professional-… (Third Party Advisory)
- www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2022-026.txt (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-44005?
- CVE-2022-44005 is a medium-severity vulnerability in Backclick, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 5.3/10. Published 2022-11-16.
- How severe is CVE-2022-44005?
- Medium severity. CVSS v3 base score is 5.3 out of 10.