CVE-2023-40503: simple editor XXE (CVSS 7.5)

Description

LG Simple Editor saveXmlFile XML External Entity Processing Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of LG Simple Editor. Authentication is not required to exploit this vulnerability. The specific flaw exists within the saveXmlFile method. Due to the improper restriction of XML External Entity (XXE) references, a crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. . Was ZDI-CAN-19952.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-611 CWE-611

Affected Products

Vendor	Product	Versions
lg	simple_editor	All

References

Other References

https://www.zerodayinitiative.com/advisories/ZDI-23-1207/ https://www.zerodayinitiative.com/advisories/ZDI-23-1207/

Frequently Asked Questions

What is CVE-2023-40503? +

LG Simple Editor saveXmlFile XML External Entity Processing Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of LG Simple Editor. Authentication is not required to exploit this vulnerability. The specific flaw exists within the saveXmlFile method. Due to the improper restriction of XML External Entity (XXE) references, a crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. . Was ZDI-CAN-19952. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-40503? +

CVE-2023-40503 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-40503? +

CVE-2023-40503 affects products from lg, specifically: simple_editor. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-40503? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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