ReviewX – Multi-Criteria Reviews for…: Improper Privilege Management
CVE-2023-2833 is a high-severity improper privilege management vulnerability in ReviewX – Multi-Criteria Reviews for WooCommerce with Google Reviews & Schema from ReviewX, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected ReviewX – Multi-Criteria Reviews for WooCommerce with Google Reviews & Schema versions: 1.6.13 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 17.5% chance of exploitation within 30 days, which is in the top 2.82% of all scored CVEs.
EPSS places it among the vulnerabilities most likely to be exploited soon.
What to do
- Check which version of ReviewX – Multi-Criteria Reviews for WooCommerce with Google Reviews & Schema you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Reviewx | ReviewX – Multi-Criteria Reviews for WooCommerce with Google Reviews & Schema | 1.6.13 and earlier | Not stated |
| Wpdeveloper | Reviewx | 1.6.13 and earlier | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | CNA (wordfence.com) |
| CVSS 3.1 | 8.8 | High | NVD |
Official description
The ReviewX plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 1.6.13 due to insufficient restriction on the 'rx_set_screen_options' function. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to modify their user role by supplying the 'wp_screen_options[option]' and 'wp_screen_options[value]' parameters during a screen option update.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Privilege Management
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
How developers prevent this class of flaw
- Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Follow the principle of least privilege when assigning access rights to entities in a software system.
- Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.
More Improper Privilege Management vulnerabilities (CWE-269)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Technical write-ups (may include proof of concept)
- lana.codes/lanavdb/a889c3ff-5df0-4d7e-951f-0b0406468efa/Exploit, Third Party Advisory
- wordfence.com/blog/2023/05/wpdeveloper-addresses-privilege-escalation-vulnerability-in-reviewx-wordpress-plug…Exploit, Third Party Advisory
- wordfence.com/threat-intel/vulnerabilities/id/70e1d701-2cff-4793-9e4c-5b16a4038e8d?source=cveExploit, Third Party Advisory
Other references
Other vulnerabilities in ReviewX – Multi-Criteria Reviews for WooCommerce with Google Reviews & Schema
- 7.3 High severity
Recent Improper Privilege Management vulnerabilities
- 7.8 High severity
- 9.9 Critical severity
- 8.8 High severity
- 7.8 High severity
- 9.8 Critical severity
- 9.9 Critical severity
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