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CVE-2018-10469· NVD / CVE Program· CNA mitre

b3log Symphony (aka Sym) 2.6.0 allows remote attackers to upload and execute arbitrary JSP files via the name[] parameter to the /upload URI

b3log Symphony (aka Sym) 2.6.0 allows remote attackers to upload and execute arbitrary JSP files via the name[] parameter to the /upload URI.

CriticalCVSS 9.8 · v3.0—No exploit No fix recorded
Published
Apr 27, 2018
Updated
Jun 16, 2026
EPSS
2.1% · 81th percentile
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Report tools

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Action score

40

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.1%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
b3logsymphony

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • b3log symphony2.6.0

Same product

b3log: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-23049An issue in symphony v.3.6.3 and before allows a remote attacker to execute arbitrary code via the log4j component.
    39Monitor
  • CVE-2019-17488b3log Symphony (aka Sym) before 3.6.0 has XSS via the HTTP User-Agent header.
    24Monitor
  • CVE-2019-9142An issue was discovered in b3log Symphony (aka Sym) before v3.4.7.
    24Monitor
  • CVE-2017-16821b3log Symphony (aka Sym) 2.2.0 has XSS in processor/AdminProcessor.java in the admin console, as demonstrated by a crafted X-Forwarded-For H
    21Monitor
  • CVE-2018-16249In Symphony before 3.3.0, there is XSS in the Title under Post.
    19Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-434 · Unrestricted Upload of File with Dangerous Type

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

All records