PHP Vulnerability Responses by Company

Chegg, Inc.

Companies / web services
Aliases / services
チェグ / Chegg / Chegg, Inc.
Official website
https://www.chegg.com/
Sources identifying the operating company

Each response applies only to its stated service scope. “Not listed” does not mean unpatched or unaffected.

Response status by service

Chegg learning-service user data

Response status
Not listed
Response information checked
2026-10-29

Current re-audit: Related incident verified; PHP connection not stated · Research date: 2026-10-29

Unauthorized database access around April 29, 2018 may have exposed names, email/shipping addresses and hashed passwords. The notice said card, bank-account and Social Security information was not obtained.

Scope: A PHP connection and response to the current PHP vulnerabilities are not listed.

What users should do

Change reused passwords on other sites/apps and use a strong, different password for each service.

Official service URL

Source URLs

  1. Operator and official informationhttps://oag.ca.gov/system/files/California%20-%20Notice%20Letter%20to%20Consumers_0.PDFService and operation documentation
Related official sources
  1. Operator and official informationOfficial information directoryIdentifies Chegg, Inc. and the relevant service scope.
  2. 2018-09 official security noticeOfficial notice; link to this PHP incident unconfirmedUnauthorized database access around April 29, 2018 may have exposed names, email/shipping addresses and hashed passwords.

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