POWER OF ATTORNEY

Pursuant to this Power of Attorney, dated as of March 20, 2019, the undersigned
hereby appoints James F. Rogers, the Chief Legal Officer of Cars.com Inc., a
Delaware corporation (the "Company"), as the undersigned's true and lawful
attorney in fact, with full power of substitution and resubstitution, to:

(1)	prepare, execute for and on behalf of the undersigned, and file with the
U.S. Securities and Exchange Commission (the "SEC") a Form ID (including any
amendments thereto) and any other documents necessary or desirable to enable the
undersigned to make electronic filings with the SEC of reports required by
Section 16(a) of the Securities Exchange Act of 1934, as amended, and the rules
promulgated thereunder (the "Exchange Act");

(2)	prepare, execute for and on behalf of the undersigned and file with the SEC,
in the undersigned's capacity as an officer and/or director and/or stockholder
of the Company, Forms 3, 4 and 5 (including any amendments thereto) in
accordance with Section 16(a) of the Exchange Act;

(3)		do and perform any and all acts for and on behalf of the undersigned that
may be necessary or desirable to prepare and execute such Form ID and/or Forms
3, 4 and 5 (including any amendments thereto) and timely file such form(s) with
the SEC and any stock exchange or similar authority; and

(4)	take any other action of any type whatsoever in connection with the
foregoing that, in the opinion of such attorney in fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney in fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney in fact may approve in such
attorney-in-fact's discretion.

The undersigned hereby grants to James F. Rogers, as attorney in fact, acting
singly, full power and authority to do and perform any and all acts and things
necessary or desirable to be done in the exercise of any of the rights and
powers herein granted, as fully to all intents and purposes as the undersigned
could do in person, hereby ratifying and confirming all that such attorney in
fact, may lawfully do or cause to be done by virtue of this Power of Attorney
and the rights and powers herein granted.  The undersigned acknowledges that
such attorney in fact, in serving in such capacity at the request of the
undersigned, is not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Exchange Act.

This Power of Attorney supersedes any power of attorney previously executed by
the undersigned with respect to the undersigned's holdings of and transactions
in securities issued by the Company and the authority of any attorneys-in-fact
of the Company named in any such previous power of attorney is hereby revoked.
This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings of and transactions in securities issued by the Company,
unless earlier (a) revoked by the undersigned in a signed writing delivered to
such attorney in fact or (b) superseded by a new power of attorney regarding the
purposes outlined herein dated as of a later date.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of the date first written above.

/s/ Rebecca Markovich