Merge pull request from GHSA-r68h-jhhj-9jvm

* Add entry for GHSA-r68h-jhhj-9jvm.

* Detail impact of GitHub Security Advisory GHSA-r68h-jhhj-9jvm on ESAPI and discuss workarounds.

Author: kwwall

Vulnerability-Summary.md

@@ -26,3 +26,6 @@ was provided in the description of the CVE.
 |[10](https://github.com/ESAPI/esapi-java-legacy/blob/develop/documentation/ESAPI-security-bulletin10.pdf)|There is an RCE flaw caused by an insecure deserialization vulnerability in Apache Chainsaw, a Java-based GUI log viewer.            CVE-2020-9493 identified a deserialization issue that was present in Apache Chainsaw 2.x prior to 2.1.0. However, prior to Chainsaw V2.0, Chainsaw was a component of Apache Log4j 1.2.x where the same issue exists and remains unfixed.|[CWE-502](https://cwe.mitre.org/data/definitions/502.html)|[CVE-2022-23307](https://nvd.nist.gov/vuln/detail/CVE-2022-23307)|Remote Code Execution is possible if you are running Apache Chainsaw 1.x from the Apache Log4J 1.2.x jar.|None. ESAPI uses ConsoleAppender as the default appender even if ESAPI logging is configured to use Log4J 1.|
 |[GHSA-8m5h-hrqm-pxm2](https://github.com/ESAPI/esapi-java-legacy/security/advisories/GHSA-8m5h-hrqm-pxm2)|The default implementation of `Validator.getValidDirectoryPath(String, String, File, boolean)` may incorrectly treat the tested input string as a child of the specified parent directory. This potentially could allow control-flow bypass checks to be defeated if an attack can specify the entire string representing the 'input' path.|[CWE-22](https://cwe.mitre.org/data/definitions/22.html)|[CVE-2022-23457](https://nvd.nist.gov/vuln/detail/CVE-2022-23457)|Control-flow bypass may be possible.|ESAPI 2.x, prior to the ESAPI 2.3.0.0 release. Version 2.3.0.0 and later are patched.|
 |[11](https://github.com/ESAPI/esapi-java-legacy/blob/develop/documentation/ESAPI-security-bulletin11.pdf)|There is a DoS vulerablity in the FileUploadBase class of Apache Commons FileUpload for releases prior to 1.5. That DoS vulnerability is caused by not limiting the number of files that could be uploaded per single request.|[CWE-770](https://cwe.mitre.org/data/definitions/770.html)|[CVE-2023-24998](https://nvd.nist.gov/vuln/detail/CVE-2023-24998)|None. ESAPI uses a subclass of the affected FileUpladBase abstract class from Apache Commons FileUpload to which a new setFileCountMax() method was added.|Addressed in ESAPI 2.5.2.0 and later.|
+|[GHSA-r68h-jhhj-9jvm](https://github.com/ESAPI/esapi-java-legacy/security/advisories/GHSA-r68h-jhhj-9jvm)|Decribes why ESAPI's Validator.isValidSafeHTML is being deprecated and will be removed one year after the ESAPI 2.5.3.0 release date.|[CWE-80](https://cwe.mitre.org/data/definitions/80.html)|N/A (no CVE)|XSS may be possible depending on how the method is used.|All ESAPI versions (all 1.x and 2.x versions). No patch is available until the methods are deleted one year after the ESAPI 2.5.3.0 release date.|
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