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CVE-2019-17558

HIGH
7.5
CVSS Score
Published: December 30, 2019 at 04:36 PM UTC
Updated: June 17, 2026 at 02:24 AM UTC
2 products affected across 2 vendorsPrimavera UnifierSolr

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Severity
HIGH7.5
Exploitation
CISA KEV
Exploit prediction
EPSS 99%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score98.6%

EPSS (Exploit Prediction Scoring System) estimates a 98.6% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

The Apache Solr VelocityResponseWriter plug-in contains an unspecified vulnerability which can allow for remote code execution.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Nov 3, 2021
Remediation Due
May 3, 2022
1639 days overdue
Notes
https://nvd.nist.gov/vuln/detail/CVE-2019-17558

Description

Apache Solr 5.0.0 to Apache Solr 8.3.1 are vulnerable to a Remote Code Execution through the VelocityResponseWriter. A Velocity template can be provided through Velocity templates in a configset `velocity/` directory or as a parameter. A user defined configset could contain renderable, potentially malicious, templates. Parameter provided templates are disabled by default, but can be enabled by setting `params.resource.loader.enabled` by defining a response writer with that setting set to `true`. Defining a response writer requires configuration API access. Solr 8.4 removed the params resource loader entirely, and only enables the configset-provided template rendering when the configset is `trusted` (has been uploaded by an authenticated user).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Solr· Apachemaven
95%
5.0.0 ≤ v < 7.7.38.0.0 ≤ v < 8.4.0Apache Solr 5.0.0 to Apache Solr 8.3.1
Affected range stops below 7.7.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.4.0, so it looks safe — our inference, not a vendor statement
Primavera Unifier· Oracledrupal
95%
17.7 ≤ v ≤ 17.1216.116.218.819.12

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (30)

x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/157078/Apache-Solr-8.3.0-Velocity-Template-Remote-Code-Execution.html
x_refsource_MISCExploitIssue TrackingPatchVendor Advisory
Source: [email protected]
https://issues.apache.org/jira/browse/SOLR-13971
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r0b7b9d4113e6ec1ae1d3d0898c645f758511107ea44f0f3a1210c5d5%40%3Cissues.lucene.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r12ab2cb15a34e49b4fecb5b2bdd7e10f3e8b7bf1f4f47fcde34d3a7c%40%3Cissues.lucene.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r19d23e8640236a3058b4d6c23e5cd663fde182255f5a9d63e0606a66%40%3Cdev.lucene.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r1d4a247329a8478073163567bbc8c8cb6b49c6bfc2bf58153a857af1%40%3Ccommits.druid.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r204ba2a9ea750f38d789d2bb429cc0925ad6133deea7cbc3001d96b5%40%3Csolr-user.lucene.apache.org%3E
Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/r25f1bd4545617f5b86dde27b4c30fec73117af65598a30e20209739a%40%3Cissues.lucene.apache.org%3E

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-74

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