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GHSA-6gw4-x63h-5499

MediumCVSS 4.3 / 10
Published Oct 19, 2020·Last modified Mar 13, 2026
Affected Components(0)

No affected components available

Description

Impact

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).

Patches

Patch has been provided for Sylius 1.6.x and newer - 1.6.9, 1.7.9, 1.8.3. Versions older than 1.6 are not covered by our security support anymore.

Workarounds

If for whatever reason you are not able to upgrade your application version, 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.

Acknowledgements

This security issue has been reported by Mircea Silviu (@decemvre), thanks a lot!

For more information

If you have any questions or comments about this advisory:

Risk Scores
Base Score
4.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the integrity of the data.

Threat Intelligence
4.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.63%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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