eCommerce CMS: Improper Neutralization of Special Elements in Output Used by a Downstream Component
CVE-2023-4548 is a critical-severity improper neutralization of special elements in output used by a downstream component vulnerability in eCommerce CMS from Spa-cart, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected eCommerce CMS versions: 1.9.0.3. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 28.6% chance of exploitation within 30 days, which is in the top 1.83% of all scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Check which version of eCommerce CMS you run against the affected versions below, and install the vendor's latest release.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| SPA-Cart | eCommerce CMS | 1.9.0.3 | 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
- NoneNo account or login is needed.
- 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:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 2.1 | Low | CNA (vuldb.com) |
| CVSS 3.1 | 6.3 | Medium | CNA (vuldb.com) |
| CVSS 3.1 | 9.8 | Critical | NVD |
| CVSS 2.0 | 6.5 | Medium | CNA (vuldb.com) |
Official description
A vulnerability has been found in SPA-Cart eCommerce CMS 1.9.0.3. The impacted element is an unknown function of the file /search of the component GET Parameter Handler. Such manipulation of the argument filter[brandid] leads to sql injection. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. Upgrading to version 1.9.1.4 is sufficient to resolve this issue. You should upgrade the affected component.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements in Output Used by a Downstream Component
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
How developers prevent this class of flaw
- Programming languages and supporting technologies might be chosen which are not subject to these issues.
- Utilize an appropriate mix of allowlist and denylist parsing to filter control-plane syntax from all input.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- vuldb.com/cve/CVE-2023-4548Third Party Advisory, VDB Entry
- vuldb.com/submit/197639Third Party Advisory, VDB Entry
- vuldb.com/vuln/238059Third Party Advisory, VDB Entry
- vuldb.com/?ctiid.238059Permissions Required, Third Party Advisory, VDB Entry
- vuldb.com/?id.238059Third Party Advisory, VDB Entry
Technical write-ups (may include proof of concept)
- packetstormsecurity.com/files/174344/SPA-Cart-eCommerce-CMS-1.9.0.3-SQL-Injection.htmlExploit, Third Party Advisory, VDB Entry
- exploit-db.com/exploits/51714Exploit, Third Party Advisory, VDB Entry
Other references
- codecanyon.net/item/ajax-cart-very-fast-no-page-reloading-many-features-responsive-and-mobile-skin/17109430Product
- vuldb.com/vuln/238059/ctiPermissions Required, VDB Entry
Recent Improper Neutralization of Special Elements in Output Used by a Downstream Component vulnerabilities
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- 9.8 Critical severity
- 9.8 Critical severity
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- 9.8 Critical severity
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