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CVE-2026-34788— Emlog: SQL Injection in tag_model::updateTagName() via unsanitized parameters

Quick assessment

Affected
emlog emlog
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

emlog是emlog开源的一套基于PHP和MySQL的CMS建站系统。 Emlog 2.6.2及之前版本存在SQL注入漏洞，该漏洞源于include/model/tag_model.php中updateTagName函数直接将用户输入插入SQL查询字符串，可能导致SQL注入攻击。

CVSS 6.5 · Medium EPSS 0.41% · P34
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I. Basic Information for CVE-2026-34788

Vulnerability Information
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Vulnerability Title
Emlog: SQL Injection in tag_model::updateTagName() via unsanitized parameters
Source: CVE Program / CVE List V5
Vulnerability Description
Emlog is an open source website building system. In versions 2.6.2 and prior, a SQL injection vulnerability exists in include/model/tag_model.php at line 168. The updateTagName() function directly interpolates user input into the SQL query string without using parameterized queries or proper escaping ($this->db->escape_string()), making it vulnerable to SQL injection attacks. At time of publication, there are no publicly available patches.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
emlog SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
emlog是emlog开源的一套基于PHP和MySQL的CMS建站系统。 Emlog 2.6.2及之前版本存在SQL注入漏洞，该漏洞源于include/model/tag_model.php中updateTagName函数直接将用户输入插入SQL查询字符串，可能导致SQL注入攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
emlog emlog <= 2.6.2 -

II. Public POCs for CVE-2026-34788

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III. Intelligence Information for CVE-2026-34788

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Vendor Advisories for CVE-2026-34788 (1)

Same Patch Batch · emlog · 2026-04-03 · 5 CVEs total

CVE-2026-34607 7.2 HIGH Emlog: Path Traversal in emUnZip() allows arbitrary file write leading to RCE
CVE-2026-34787 6.5 MEDIUM Emlog: Local File Inclusion in plugin.php via unsanitized plugin parameter
CVE-2026-34229 6.1 MEDIUM Emlog: Stored XSS in Comment Module via URI Scheme Validation Bypass
CVE-2026-34228 Emlog: CSRF in Backend Upgrade Interface Leading to Arbitrary Remote SQL Execution and Arb

IV. Related Vulnerabilities

Same product: emlog
Same vendor: emlog
Same weakness: CWE-89

V. Comments for CVE-2026-34788

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