Description
Applications that configure the WebFlowELExpressionParser are vulnerable to the use of malicious Unified EL expressions.
Affected versions:
Spring Web Flow 4.0.0; 3.0.0 through 3.0.1; 2.5.0 through 2.5.1.
Basic information
- Type
- unreviewed
- Severity
- medium
- Advisory on GitHub
- Open advisory ↗
- Repository advisory
- —
- Source code
- Not specified
- Published (advisory)
- 2026-06-11 06:30:28 UTC
- Updated
- 2026-06-11 06:30:33 UTC
- NVD published
- 2026-06-11
EPSS Score
| Score |
Percentile |
|
0.03%
|
9.91% |
CVSS Scores
| Base score |
Version |
Severity |
Vector |
|
6.4
|
3.1 |
—
|
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
Click to expand
- Attack vector (AV:N)
- Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
- Attack complexity (AC:H)
- Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
- Privileges required (PR:L)
- A normal user session is enough; they don’t have to be admin.
- User interaction (UI:R)
- A real person has to do something—click, install, enable—otherwise it doesn’t land.
- Scope (S:U)
- Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
- Confidentiality (C:H)
- Serious risk that confidential data gets exposed in a big way.
- Integrity (I:H)
- They could widely tamper with or forge data—trust in the data is badly hurt.
- Availability (A:N)
- Service keeps running; no real outage angle.
|
CWEs
| CWE id |
Name |
|
CWE-917
|
Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection') |
cvelogic
Threat Intelligence