| Título | https://github.com/jeecgboot/JeecgBoot <=3.91 SQL Injection |
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| Descripción | The dictionary query endpoint /sys/api/queryFilterTableDictInfo in JeecgBoot contains a SQL injection vulnerability caused by two compounding security flaws:
Signature Bypass: The endpoint enforces signature verification (@SignatureCheck), but due to differences in JSON serialization behavior between Java (fastjson) and other languages (e.g. Python), an attacker can reproduce a valid signature by sorting parameters alphabetically, effectively bypassing the signature check.
Blacklist Bypass: After passing signature verification, the filterSql parameter is checked by SqlInjectionUtil.specialFilterContentForDictSql. However, the blacklist only matches keywords followed by a space (e.g. select ). Using select( without a space bypasses the check entirely. |
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| Fuente | ⚠️ https://github.com/nn0nkey/JD-Security-SHENYI-Team/blob/main/JeecgBoot_SQL_Injection_Signature_Blacklist_Bypass.md |
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| Usuario | JD Security SHENYI Team (UID 97436) |
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| Sumisión | 2026-04-17 09:39 (hace 2 meses) |
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| Moderación | 2026-05-09 08:59 (22 days later) |
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| Estado | Duplicado |
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| Entrada de VulDB | 231896 [JeecgBoot hasta 3.5.1 queryFilterTableDictInfo inyección SQL] |
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| Puntos | 0 |
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