XSS in Sylius
CVE-2020-15245
In Sylius before versions 1.6.9, 1.7.9 and 1.8.3, the user may register in a shop by email mail@example.com, verify it, change it to the mail another@domain.com and stay verified and enabled. This may lead to having accounts addressed to totally different emails, that were verified. Note, that this way one is not able to take over any existing account (guest or normal one). The issue has been patched in Sylius 1.6.9, 1.7.9 and 1.8.3. As a workaround, you may resolve this issue on your own by creating a custom event listener, which will listen to the sylius.customer.pre_update event. You can determine that email has been changed if customer email and user username are different. They are synchronized later on. Pay attention, to email changing behavior for administrators. You may need to skip this logic for them. In order to achieve this, you should either check master request path info, if it does not contain /admin prefix or adjust event triggered during customer update in the shop. You can find more information on how to customize the event here.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.0% 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: 0.006 · change: 0.000
Affected products
- Sylius — versions >= 9.0.0, < 9.4.4
Weakness classification (CWE)
References
- github.com/Sylius/Sylius/security/advisories/GHSA-6gw4-x63h-5499 (Third Party Advisory, Mitigation)
- github.com/Sylius/Sylius/commit/60636d711a4011e8694d10d201b53632c7e8ecaf (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15245?
- CVE-2020-15245 is a medium-severity vulnerability in Sylius, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2020-10-19.
- How severe is CVE-2020-15245?
- Medium severity. CVSS v3 base score is 4.3 out of 10.