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    Web Application Firewall:DescribeBaseRuleChangeLog

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    Web Application Firewall:DescribeBaseRuleChangeLog

    Last Updated:Mar 25, 2026

    Queries protection rule change logs on a paginated basis.

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    RAM authorization

    No authorization for this operation. If you encounter issues with this operation, contact technical support.

    Request parameters

    Parameter

    Type

    Required

    Description

    Example

    InstanceId

    string

    Yes

    The ID of the WAF instance.

    Note

    Call DescribeInstance to obtain the instance ID.

    waf-cn-mp9153****

    PageNumber

    integer

    No

    The page number. Pages start from page 1. Default value: 1.

    1

    PageSize

    integer

    No

    The number of entries per page.

    10

    Lang

    string

    No

    The language of the rule names in the response. Valid values:

    • zh: Chinese.

    • en: English.

    zh

    ResourceManagerResourceGroupId

    string

    No

    The ID of the Alibaba Cloud resource group.

    rg-acfm***q

    RegionId

    string

    No

    The region of the WAF instance. Valid values:

    • cn-hangzhou: The Chinese mainland.

    • ap-southeast-1: Outside the Chinese mainland.

    cn-hangzhou

    Response elements

    Element

    Type

    Description

    Example

    object

    RequestId

    string

    The request ID.

    6FBF08CB-8691-5B65-BBF8-***

    Rules

    array<object>

    The list of rule change records.

    object

    A rule change record.

    RuleId

    integer

    The rule ID.

    42755

    UpdateTime

    integer

    The time when the rule was updated, in UNIX timestamp format. Unit: milliseconds.

    1665460629000

    RuleName

    string

    The rule name.

    Header XSS Scanner Behavior

    Operation

    string

    The type of change. Valid values:

    • add: The rule was added.

    • modify: The rule was modified.

    add

    CveId

    string

    The CVE ID of the vulnerability associated with the system rule.

    CVE-2021-34538

    TotalCount

    integer

    The total number of rule change records.

    63

    Examples

    Success response

    JSON format

    {
  "RequestId": "6FBF08CB-8691-5B65-BBF8-***\n",
  "Rules": [
    {
      "RuleId": 42755,
      "UpdateTime": 1665460629000,
      "RuleName": "Header XSS Scanner Behavior",
      "Operation": "add",
      "CveId": "CVE-2021-34538"
    }
  ],
  "TotalCount": 63
}

    Error codes

    See Error Codes for a complete list.

    Release notes

    See Release Notes for a complete list.